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Message-ID: <86io9jvvyr.fsf@enight.me>
Date: Fri, 17 Jul 2015 19:56:28 +0800
From: Junjie Mao <junjie.mao@...ght.me>
To: "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc: Pavel Machek <pavel@....cz>, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Need a pairing decrement if pm_runtime_get_sync() fails?
Hi all,
While analyzing the source, I notice that many drivers use
pm_runtime_get_sync() in the following pattern:
err = pm_runtime_get_sync(...)
if (err < 0) {
dev_err(...);
return err;
}
Can this lead to the imbalance of runtime PM usage counter, as the
counter is always incremented in __pm_runtime_resume() regardless of the
return value? Is a pairing decrement (e.g. pm_runtime_put_sync() or
pm_runtime_put_noidle()) a must on the error-handling path? If so, which
is a better fix, adding a pairing decrement to each call site, or
decrementing the usage counter in __pm_runtime_resume() if rpm_resume()
fails?
A quick grep in the source shows that there are 150 calls to
pm_runtime_get() or pm_runtime_get_sync() (I only search for call
sites where the return values are checked), and 102 of them lack the
pairing decrement on the error-handling path. A list of these 102 call
sites, along with their contexts, are attached below for reference.
Best Regards
Junjie Mao
--------------------------------------------------------------------------------
arch/arm/common/edma.c: ret = pm_runtime_get_sync(dev);
arch/arm/common/edma.c- if (ret < 0) {
arch/arm/common/edma.c- dev_err(dev, "pm_runtime_get_sync() failed\n");
arch/arm/common/edma.c- return ret;
arch/arm/common/edma.c- }
--
drivers/hsi/controllers/omap_ssi.c: err = pm_runtime_get_sync(ssi->device.parent);
drivers/hsi/controllers/omap_ssi.c- if (err < 0) {
drivers/hsi/controllers/omap_ssi.c- dev_err(&ssi->device, "runtime PM failed %d\n", err);
drivers/hsi/controllers/omap_ssi.c- return err;
drivers/hsi/controllers/omap_ssi.c- }
--
drivers/usb/core/hub.c: status = pm_runtime_get_sync(&port_dev->dev);
drivers/usb/core/hub.c- if (status < 0) {
drivers/usb/core/hub.c- dev_dbg(&udev->dev, "can't resume usb port, status %d\n",
drivers/usb/core/hub.c- status);
drivers/usb/core/hub.c- return status;
--
drivers/usb/musb/omap2430.c: status = pm_runtime_get_sync(dev);
drivers/usb/musb/omap2430.c- if (status < 0) {
drivers/usb/musb/omap2430.c- dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status);
drivers/usb/musb/omap2430.c- goto err1;
drivers/usb/musb/omap2430.c- }
--
drivers/usb/musb/musb_dsps.c: ret = pm_runtime_get_sync(&pdev->dev);
drivers/usb/musb/musb_dsps.c- if (ret < 0) {
drivers/usb/musb/musb_dsps.c- dev_err(&pdev->dev, "pm_runtime_get_sync FAILED");
drivers/usb/musb/musb_dsps.c- goto err2;
drivers/usb/musb/musb_dsps.c- }
--
drivers/usb/dwc3/dwc3-omap.c: ret = pm_runtime_get_sync(dev);
drivers/usb/dwc3/dwc3-omap.c- if (ret < 0) {
drivers/usb/dwc3/dwc3-omap.c- dev_err(dev, "get_sync failed with err %d\n", ret);
drivers/usb/dwc3/dwc3-omap.c- goto err0;
drivers/usb/dwc3/dwc3-omap.c- }
--
drivers/crypto/omap-sham.c: err = pm_runtime_get_sync(dd->dev);
drivers/crypto/omap-sham.c- if (err < 0) {
drivers/crypto/omap-sham.c- dev_err(dd->dev, "failed to get sync: %d\n", err);
drivers/crypto/omap-sham.c- return err;
drivers/crypto/omap-sham.c- }
--
drivers/crypto/omap-sham.c: err = pm_runtime_get_sync(dev);
drivers/crypto/omap-sham.c- if (err < 0) {
drivers/crypto/omap-sham.c- dev_err(dev, "failed to get sync: %d\n", err);
drivers/crypto/omap-sham.c- goto err_pm;
drivers/crypto/omap-sham.c- }
--
drivers/crypto/omap-sham.c: int err = pm_runtime_get_sync(dev);
drivers/crypto/omap-sham.c- if (err < 0) {
drivers/crypto/omap-sham.c- dev_err(dev, "failed to get sync: %d\n", err);
drivers/crypto/omap-sham.c- return err;
drivers/crypto/omap-sham.c- }
--
drivers/crypto/omap-aes.c: err = pm_runtime_get_sync(dd->dev);
drivers/crypto/omap-aes.c- if (err < 0) {
drivers/crypto/omap-aes.c- dev_err(dd->dev, "%s: failed to get_sync(%d)\n",
drivers/crypto/omap-aes.c- __func__, err);
drivers/crypto/omap-aes.c- return err;
--
drivers/crypto/omap-aes.c: err = pm_runtime_get_sync(dev);
drivers/crypto/omap-aes.c- if (err < 0) {
drivers/crypto/omap-aes.c- dev_err(dev, "%s: failed to get_sync(%d)\n",
drivers/crypto/omap-aes.c- __func__, err);
drivers/crypto/omap-aes.c- goto err_res;
--
drivers/gpu/vga/vga_switcheroo.c: ret = pm_runtime_get_sync(&client->pdev->dev);
drivers/gpu/vga/vga_switcheroo.c- if (ret) {
drivers/gpu/vga/vga_switcheroo.c- if (ret != 1)
drivers/gpu/vga/vga_switcheroo.c- return ret;
drivers/gpu/vga/vga_switcheroo.c- }
--
drivers/gpu/drm/nouveau/nouveau_drm.c: ret = pm_runtime_get_sync(dev->dev);
drivers/gpu/drm/nouveau/nouveau_drm.c- if (ret < 0 && ret != -EACCES)
drivers/gpu/drm/nouveau/nouveau_drm.c- return ret;
drivers/gpu/drm/nouveau/nouveau_drm.c-
drivers/gpu/drm/nouveau/nouveau_drm.c- get_task_comm(tmpname, current);
--
drivers/gpu/drm/nouveau/nouveau_drm.c: ret = pm_runtime_get_sync(dev->dev);
drivers/gpu/drm/nouveau/nouveau_drm.c- if (ret < 0 && ret != -EACCES)
drivers/gpu/drm/nouveau/nouveau_drm.c- return ret;
drivers/gpu/drm/nouveau/nouveau_drm.c-
drivers/gpu/drm/nouveau/nouveau_drm.c- switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
--
drivers/gpu/drm/nouveau/nouveau_gem.c: ret = pm_runtime_get_sync(dev);
drivers/gpu/drm/nouveau/nouveau_gem.c- if (WARN_ON(ret < 0 && ret != -EACCES))
drivers/gpu/drm/nouveau/nouveau_gem.c- return;
drivers/gpu/drm/nouveau/nouveau_gem.c-
drivers/gpu/drm/nouveau/nouveau_gem.c- if (gem->import_attach)
--
drivers/gpu/drm/nouveau/nouveau_gem.c: ret = pm_runtime_get_sync(dev);
drivers/gpu/drm/nouveau/nouveau_gem.c- if (ret < 0 && ret != -EACCES)
drivers/gpu/drm/nouveau/nouveau_gem.c- goto out;
drivers/gpu/drm/nouveau/nouveau_gem.c-
drivers/gpu/drm/nouveau/nouveau_gem.c- ret = nouveau_bo_vma_add(nvbo, cli->vm, vma);
--
drivers/gpu/drm/nouveau/dispnv04/crtc.c: ret = pm_runtime_get_sync(dev->dev);
drivers/gpu/drm/nouveau/dispnv04/crtc.c- if (ret < 0 && ret != -EACCES)
drivers/gpu/drm/nouveau/dispnv04/crtc.c- return ret;
drivers/gpu/drm/nouveau/dispnv04/crtc.c-
drivers/gpu/drm/nouveau/dispnv04/crtc.c- ret = drm_crtc_helper_set_config(set);
--
drivers/gpu/drm/nouveau/nouveau_connector.c: ret = pm_runtime_get_sync(connector->dev->dev);
drivers/gpu/drm/nouveau/nouveau_connector.c- if (ret < 0 && ret != -EACCES)
drivers/gpu/drm/nouveau/nouveau_connector.c- return conn_status;
drivers/gpu/drm/nouveau/nouveau_connector.c-
drivers/gpu/drm/nouveau/nouveau_connector.c- nv_encoder = nouveau_connector_ddc_detect(connector);
--
drivers/gpu/drm/rockchip/rockchip_drm_vop.c: ret = pm_runtime_get_sync(vop->dev);
drivers/gpu/drm/rockchip/rockchip_drm_vop.c- if (ret < 0) {
drivers/gpu/drm/rockchip/rockchip_drm_vop.c- dev_err(vop->dev, "failed to get pm runtime: %d\n", ret);
drivers/gpu/drm/rockchip/rockchip_drm_vop.c- return;
drivers/gpu/drm/rockchip/rockchip_drm_vop.c- }
--
drivers/gpu/drm/radeon/radeon_drv.c: ret = pm_runtime_get_sync(dev->dev);
drivers/gpu/drm/radeon/radeon_drv.c- if (ret < 0)
drivers/gpu/drm/radeon/radeon_drv.c- return ret;
drivers/gpu/drm/radeon/radeon_drv.c-
drivers/gpu/drm/radeon/radeon_drv.c- ret = drm_ioctl(filp, cmd, arg);
--
drivers/gpu/drm/radeon/radeon_connectors.c: r = pm_runtime_get_sync(connector->dev->dev);
drivers/gpu/drm/radeon/radeon_connectors.c- if (r < 0)
drivers/gpu/drm/radeon/radeon_connectors.c- return connector_status_disconnected;
drivers/gpu/drm/radeon/radeon_connectors.c-
drivers/gpu/drm/radeon/radeon_connectors.c- if (encoder) {
--
drivers/gpu/drm/radeon/radeon_connectors.c: r = pm_runtime_get_sync(connector->dev->dev);
drivers/gpu/drm/radeon/radeon_connectors.c- if (r < 0)
drivers/gpu/drm/radeon/radeon_connectors.c- return connector_status_disconnected;
drivers/gpu/drm/radeon/radeon_connectors.c-
drivers/gpu/drm/radeon/radeon_connectors.c- encoder = radeon_best_single_encoder(connector);
--
drivers/gpu/drm/radeon/radeon_connectors.c: r = pm_runtime_get_sync(connector->dev->dev);
drivers/gpu/drm/radeon/radeon_connectors.c- if (r < 0)
drivers/gpu/drm/radeon/radeon_connectors.c- return connector_status_disconnected;
drivers/gpu/drm/radeon/radeon_connectors.c-
drivers/gpu/drm/radeon/radeon_connectors.c- encoder = radeon_best_single_encoder(connector);
--
drivers/gpu/drm/radeon/radeon_connectors.c: r = pm_runtime_get_sync(connector->dev->dev);
drivers/gpu/drm/radeon/radeon_connectors.c- if (r < 0)
drivers/gpu/drm/radeon/radeon_connectors.c- return connector_status_disconnected;
drivers/gpu/drm/radeon/radeon_connectors.c-
drivers/gpu/drm/radeon/radeon_connectors.c- if (!force && radeon_check_hpd_status_unchanged(connector)) {
--
drivers/gpu/drm/radeon/radeon_connectors.c: r = pm_runtime_get_sync(connector->dev->dev);
drivers/gpu/drm/radeon/radeon_connectors.c- if (r < 0)
drivers/gpu/drm/radeon/radeon_connectors.c- return connector_status_disconnected;
drivers/gpu/drm/radeon/radeon_connectors.c-
drivers/gpu/drm/radeon/radeon_connectors.c- if (!force && radeon_check_hpd_status_unchanged(connector)) {
--
drivers/gpu/drm/radeon/radeon_kms.c: r = pm_runtime_get_sync(dev->dev);
drivers/gpu/drm/radeon/radeon_kms.c- if (r < 0)
drivers/gpu/drm/radeon/radeon_kms.c- return r;
drivers/gpu/drm/radeon/radeon_kms.c-
drivers/gpu/drm/radeon/radeon_kms.c- /* new gpu have virtual address space support */
--
drivers/gpu/drm/radeon/radeon_display.c: ret = pm_runtime_get_sync(dev->dev);
drivers/gpu/drm/radeon/radeon_display.c- if (ret < 0)
drivers/gpu/drm/radeon/radeon_display.c- return ret;
drivers/gpu/drm/radeon/radeon_display.c-
drivers/gpu/drm/radeon/radeon_display.c- ret = drm_crtc_helper_set_config(set);
--
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c: ret = pm_runtime_get_sync(dev->dev);
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c- if (ret < 0)
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c- return ret;
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c-
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c- ret = drm_crtc_helper_set_config(set);
--
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c: ret = pm_runtime_get_sync(dev->dev);
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c- if (ret < 0)
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c- return ret;
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c-
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c- ret = drm_ioctl(filp, cmd, arg);
--
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c: r = pm_runtime_get_sync(connector->dev->dev);
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- if (r < 0)
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- return connector_status_disconnected;
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c-
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- if (encoder) {
--
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c: r = pm_runtime_get_sync(connector->dev->dev);
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- if (r < 0)
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- return connector_status_disconnected;
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c-
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- encoder = amdgpu_connector_best_single_encoder(connector);
--
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c: r = pm_runtime_get_sync(connector->dev->dev);
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- if (r < 0)
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- return connector_status_disconnected;
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c-
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) {
--
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c: r = pm_runtime_get_sync(connector->dev->dev);
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- if (r < 0)
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- return connector_status_disconnected;
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c-
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c- if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) {
--
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c: r = pm_runtime_get_sync(dev->dev);
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c- if (r < 0)
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c- return r;
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c-
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c- fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
--
drivers/gpu/drm/exynos/exynos_drm_g2d.c: ret = pm_runtime_get_sync(g2d->dev);
drivers/gpu/drm/exynos/exynos_drm_g2d.c- if (ret < 0)
drivers/gpu/drm/exynos/exynos_drm_g2d.c- return;
drivers/gpu/drm/exynos/exynos_drm_g2d.c-
drivers/gpu/drm/exynos/exynos_drm_g2d.c- writel_relaxed(node->dma_addr, g2d->regs + G2D_DMA_SFR_BASE_ADDR);
--
drivers/i2c/busses/i2c-omap.c: r = pm_runtime_get_sync(dev->dev);
drivers/i2c/busses/i2c-omap.c- if (r < 0)
drivers/i2c/busses/i2c-omap.c- goto err_free_mem;
drivers/i2c/busses/i2c-omap.c-
drivers/i2c/busses/i2c-omap.c- /*
--
drivers/i2c/busses/i2c-omap.c: ret = pm_runtime_get_sync(&pdev->dev);
drivers/i2c/busses/i2c-omap.c- if (ret < 0)
drivers/i2c/busses/i2c-omap.c- return ret;
drivers/i2c/busses/i2c-omap.c-
drivers/i2c/busses/i2c-omap.c- omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
--
drivers/media/i2c/s5k6a3.c: ret = pm_runtime_get(sensor->dev);
drivers/media/i2c/s5k6a3.c- if (ret < 0)
drivers/media/i2c/s5k6a3.c- return ret;
drivers/media/i2c/s5k6a3.c-
drivers/media/i2c/s5k6a3.c- ret = regulator_enable(sensor->supplies[i].consumer);
--
drivers/media/platform/s5p-tv/sii9234_drv.c: ret = pm_runtime_get_sync(&ctx->client->dev);
drivers/media/platform/s5p-tv/sii9234_drv.c- else
drivers/media/platform/s5p-tv/sii9234_drv.c- ret = pm_runtime_put(&ctx->client->dev);
drivers/media/platform/s5p-tv/sii9234_drv.c- /* only values < 0 indicate errors */
drivers/media/platform/s5p-tv/sii9234_drv.c- return ret < 0 ? ret : 0;
--
drivers/media/platform/s5p-tv/sii9234_drv.c: ret = pm_runtime_get_sync(dev);
drivers/media/platform/s5p-tv/sii9234_drv.c- if (ret)
drivers/media/platform/s5p-tv/sii9234_drv.c- goto fail_pm;
drivers/media/platform/s5p-tv/sii9234_drv.c-
drivers/media/platform/s5p-tv/sii9234_drv.c- /* verify chip version */
--
drivers/media/platform/s5p-tv/hdmi_drv.c: ret = pm_runtime_get_sync(hdev->dev);
drivers/media/platform/s5p-tv/hdmi_drv.c- else
drivers/media/platform/s5p-tv/hdmi_drv.c- ret = pm_runtime_put_sync(hdev->dev);
drivers/media/platform/s5p-tv/hdmi_drv.c- /* only values < 0 indicate errors */
drivers/media/platform/s5p-tv/hdmi_drv.c- return ret < 0 ? ret : 0;
--
drivers/media/platform/s5p-tv/mixer_drv.c: int ret = pm_runtime_get_sync(mdev->dev);
drivers/media/platform/s5p-tv/mixer_drv.c-
drivers/media/platform/s5p-tv/mixer_drv.c- /* returning 1 means that power is already enabled,
drivers/media/platform/s5p-tv/mixer_drv.c- * so zero success be returned */
drivers/media/platform/s5p-tv/mixer_drv.c- if (IS_ERR_VALUE(ret))
--
drivers/media/platform/s5p-tv/sdo_drv.c: ret = pm_runtime_get_sync(dev);
drivers/media/platform/s5p-tv/sdo_drv.c- else
drivers/media/platform/s5p-tv/sdo_drv.c- ret = pm_runtime_put_sync(dev);
drivers/media/platform/s5p-tv/sdo_drv.c-
drivers/media/platform/s5p-tv/sdo_drv.c- /* only values < 0 indicate errors */
--
drivers/media/platform/sti/bdisp/bdisp-debug.c: ret = pm_runtime_get_sync(bdisp->dev);
drivers/media/platform/sti/bdisp/bdisp-debug.c- if (ret < 0) {
drivers/media/platform/sti/bdisp/bdisp-debug.c- seq_puts(s, "Cannot wake up IP\n");
drivers/media/platform/sti/bdisp/bdisp-debug.c- return 0;
drivers/media/platform/sti/bdisp/bdisp-debug.c- }
--
drivers/media/platform/sti/bdisp/bdisp-v4l2.c: int ret = pm_runtime_get_sync(ctx->bdisp_dev->dev);
drivers/media/platform/sti/bdisp/bdisp-v4l2.c-
drivers/media/platform/sti/bdisp/bdisp-v4l2.c- if (ret < 0) {
drivers/media/platform/sti/bdisp/bdisp-v4l2.c- dev_err(ctx->bdisp_dev->dev, "failed to set runtime PM\n");
drivers/media/platform/sti/bdisp/bdisp-v4l2.c-
--
drivers/media/platform/sti/bdisp/bdisp-v4l2.c: ret = pm_runtime_get_sync(dev);
drivers/media/platform/sti/bdisp/bdisp-v4l2.c- if (ret < 0) {
drivers/media/platform/sti/bdisp/bdisp-v4l2.c- dev_err(dev, "failed to set PM\n");
drivers/media/platform/sti/bdisp/bdisp-v4l2.c- goto err_dbg;
drivers/media/platform/sti/bdisp/bdisp-v4l2.c- }
--
drivers/media/platform/s3c-camif/camif-capture.c: ret = pm_runtime_get_sync(camif->dev);
drivers/media/platform/s3c-camif/camif-capture.c- if (ret < 0)
drivers/media/platform/s3c-camif/camif-capture.c- goto err_pm;
drivers/media/platform/s3c-camif/camif-capture.c-
drivers/media/platform/s3c-camif/camif-capture.c- ret = sensor_set_power(camif, 1);
--
drivers/media/platform/s3c-camif/camif-core.c: ret = pm_runtime_get_sync(dev);
drivers/media/platform/s3c-camif/camif-core.c- if (ret < 0)
drivers/media/platform/s3c-camif/camif-core.c- goto err_pm;
drivers/media/platform/s3c-camif/camif-core.c-
drivers/media/platform/s3c-camif/camif-core.c- /* Initialize contiguous memory allocator */
--
drivers/media/platform/s5p-jpeg/jpeg-core.c: ret = pm_runtime_get_sync(ctx->jpeg->dev);
drivers/media/platform/s5p-jpeg/jpeg-core.c-
drivers/media/platform/s5p-jpeg/jpeg-core.c- return ret > 0 ? 0 : ret;
drivers/media/platform/s5p-jpeg/jpeg-core.c-}
drivers/media/platform/s5p-jpeg/jpeg-core.c-
--
drivers/media/platform/exynos-gsc/gsc-core.c: ret = pm_runtime_get_sync(&pdev->dev);
drivers/media/platform/exynos-gsc/gsc-core.c- if (ret < 0)
drivers/media/platform/exynos-gsc/gsc-core.c- goto err_m2m;
drivers/media/platform/exynos-gsc/gsc-core.c-
drivers/media/platform/exynos-gsc/gsc-core.c- /* Initialize continious memory allocator */
--
drivers/media/platform/exynos-gsc/gsc-m2m.c: ret = pm_runtime_get_sync(&ctx->gsc_dev->pdev->dev);
drivers/media/platform/exynos-gsc/gsc-m2m.c- return ret > 0 ? 0 : ret;
drivers/media/platform/exynos-gsc/gsc-m2m.c-}
drivers/media/platform/exynos-gsc/gsc-m2m.c-
drivers/media/platform/exynos-gsc/gsc-m2m.c-static void gsc_m2m_stop_streaming(struct vb2_queue *q)
--
drivers/media/platform/exynos4-is/fimc-lite.c: ret = pm_runtime_get_sync(&fimc->pdev->dev);
drivers/media/platform/exynos4-is/fimc-lite.c- if (ret < 0)
drivers/media/platform/exynos4-is/fimc-lite.c- goto unlock;
drivers/media/platform/exynos4-is/fimc-lite.c-
drivers/media/platform/exynos4-is/fimc-lite.c- ret = v4l2_fh_open(file);
--
drivers/media/platform/exynos4-is/fimc-isp-video.c: ret = pm_runtime_get_sync(&isp->pdev->dev);
drivers/media/platform/exynos4-is/fimc-isp-video.c- if (ret < 0)
drivers/media/platform/exynos4-is/fimc-isp-video.c- goto rel_fh;
drivers/media/platform/exynos4-is/fimc-isp-video.c-
drivers/media/platform/exynos4-is/fimc-isp-video.c- if (v4l2_fh_is_singular_file(file)) {
--
drivers/media/platform/exynos4-is/media-dev.c: ret = pm_runtime_get_sync(fmd->pmf);
drivers/media/platform/exynos4-is/media-dev.c- if (ret < 0)
drivers/media/platform/exynos4-is/media-dev.c- return ret;
drivers/media/platform/exynos4-is/media-dev.c-
drivers/media/platform/exynos4-is/media-dev.c- fmd->num_sensors = 0;
--
drivers/media/platform/exynos4-is/media-dev.c: ret = pm_runtime_get_sync(camclk->fmd->pmf);
drivers/media/platform/exynos4-is/media-dev.c- return ret < 0 ? ret : 0;
drivers/media/platform/exynos4-is/media-dev.c-}
drivers/media/platform/exynos4-is/media-dev.c-
drivers/media/platform/exynos4-is/media-dev.c-static void cam_clk_unprepare(struct clk_hw *hw)
--
drivers/media/platform/exynos4-is/fimc-capture.c: ret = pm_runtime_get_sync(&fimc->pdev->dev);
drivers/media/platform/exynos4-is/fimc-capture.c- if (ret < 0)
drivers/media/platform/exynos4-is/fimc-capture.c- goto unlock;
drivers/media/platform/exynos4-is/fimc-capture.c-
drivers/media/platform/exynos4-is/fimc-capture.c- ret = v4l2_fh_open(file);
--
drivers/media/platform/exynos4-is/fimc-is.c: ret = pm_runtime_get_sync(dev);
drivers/media/platform/exynos4-is/fimc-is.c- if (ret < 0)
drivers/media/platform/exynos4-is/fimc-is.c- goto err_pm;
drivers/media/platform/exynos4-is/fimc-is.c-
drivers/media/platform/exynos4-is/fimc-is.c- is->alloc_ctx = vb2_dma_contig_init_ctx(dev);
--
drivers/media/platform/exynos4-is/fimc-m2m.c: ret = pm_runtime_get_sync(&ctx->fimc_dev->pdev->dev);
drivers/media/platform/exynos4-is/fimc-m2m.c- return ret > 0 ? 0 : ret;
drivers/media/platform/exynos4-is/fimc-m2m.c-}
drivers/media/platform/exynos4-is/fimc-m2m.c-
drivers/media/platform/exynos4-is/fimc-m2m.c-static void stop_streaming(struct vb2_queue *q)
--
drivers/media/platform/exynos4-is/mipi-csis.c: ret = pm_runtime_get_sync(&state->pdev->dev);
drivers/media/platform/exynos4-is/mipi-csis.c- if (ret && ret != 1)
drivers/media/platform/exynos4-is/mipi-csis.c- return ret;
drivers/media/platform/exynos4-is/mipi-csis.c- }
drivers/media/platform/exynos4-is/mipi-csis.c-
--
drivers/media/platform/exynos4-is/fimc-isp.c: ret = pm_runtime_get_sync(&is->pdev->dev);
drivers/media/platform/exynos4-is/fimc-isp.c- if (ret < 0)
drivers/media/platform/exynos4-is/fimc-isp.c- return ret;
drivers/media/platform/exynos4-is/fimc-isp.c- set_bit(IS_ST_PWR_ON, &is->state);
drivers/media/platform/exynos4-is/fimc-isp.c-
--
drivers/media/platform/coda/coda-common.c: ret = pm_runtime_get_sync(&dev->plat_dev->dev);
drivers/media/platform/coda/coda-common.c- if (ret < 0) {
drivers/media/platform/coda/coda-common.c- v4l2_err(&dev->v4l2_dev, "failed to power up: %d\n", ret);
drivers/media/platform/coda/coda-common.c- goto err_pm_get;
drivers/media/platform/coda/coda-common.c- }
--
drivers/mfd/arizona-irq.c: ret = pm_runtime_get_sync(arizona->dev);
drivers/mfd/arizona-irq.c- if (ret < 0) {
drivers/mfd/arizona-irq.c- dev_err(arizona->dev, "Failed to resume device: %d\n", ret);
drivers/mfd/arizona-irq.c- return IRQ_NONE;
drivers/mfd/arizona-irq.c- }
--
drivers/video/fbdev/omap2/dss/hdmi5.c: r = pm_runtime_get_sync(&hdmi.pdev->dev);
drivers/video/fbdev/omap2/dss/hdmi5.c- WARN_ON(r < 0);
drivers/video/fbdev/omap2/dss/hdmi5.c- if (r < 0)
drivers/video/fbdev/omap2/dss/hdmi5.c- return r;
drivers/video/fbdev/omap2/dss/hdmi5.c-
--
drivers/video/fbdev/omap2/dss/dispc.c: r = pm_runtime_get_sync(&dispc.pdev->dev);
drivers/video/fbdev/omap2/dss/dispc.c- WARN_ON(r < 0);
drivers/video/fbdev/omap2/dss/dispc.c- return r < 0 ? r : 0;
drivers/video/fbdev/omap2/dss/dispc.c-}
drivers/video/fbdev/omap2/dss/dispc.c-EXPORT_SYMBOL(dispc_runtime_get);
--
drivers/video/fbdev/omap2/dss/hdmi4.c: r = pm_runtime_get_sync(&hdmi.pdev->dev);
drivers/video/fbdev/omap2/dss/hdmi4.c- WARN_ON(r < 0);
drivers/video/fbdev/omap2/dss/hdmi4.c- if (r < 0)
drivers/video/fbdev/omap2/dss/hdmi4.c- return r;
drivers/video/fbdev/omap2/dss/hdmi4.c-
--
drivers/video/fbdev/omap2/dss/dss.c: r = pm_runtime_get_sync(&dss.pdev->dev);
drivers/video/fbdev/omap2/dss/dss.c- WARN_ON(r < 0);
drivers/video/fbdev/omap2/dss/dss.c- return r < 0 ? r : 0;
drivers/video/fbdev/omap2/dss/dss.c-}
drivers/video/fbdev/omap2/dss/dss.c-
--
drivers/video/fbdev/omap2/dss/venc.c: r = pm_runtime_get_sync(&venc.pdev->dev);
drivers/video/fbdev/omap2/dss/venc.c- WARN_ON(r < 0);
drivers/video/fbdev/omap2/dss/venc.c- return r < 0 ? r : 0;
drivers/video/fbdev/omap2/dss/venc.c-}
drivers/video/fbdev/omap2/dss/venc.c-
--
drivers/video/fbdev/omap2/dss/rfbi.c: r = pm_runtime_get_sync(&rfbi.pdev->dev);
drivers/video/fbdev/omap2/dss/rfbi.c- WARN_ON(r < 0);
drivers/video/fbdev/omap2/dss/rfbi.c- return r < 0 ? r : 0;
drivers/video/fbdev/omap2/dss/rfbi.c-}
drivers/video/fbdev/omap2/dss/rfbi.c-
--
drivers/video/fbdev/omap2/dss/dsi.c: r = pm_runtime_get_sync(&dsi->pdev->dev);
drivers/video/fbdev/omap2/dss/dsi.c- WARN_ON(r < 0);
drivers/video/fbdev/omap2/dss/dsi.c- return r < 0 ? r : 0;
drivers/video/fbdev/omap2/dss/dsi.c-}
drivers/video/fbdev/omap2/dss/dsi.c-
--
drivers/input/misc/bma150.c: error = pm_runtime_get_sync(&bma150->client->dev);
drivers/input/misc/bma150.c- if (error < 0 && error != -ENOSYS)
drivers/input/misc/bma150.c- return error;
drivers/input/misc/bma150.c-
drivers/input/misc/bma150.c- /*
--
drivers/input/keyboard/omap4-keypad.c: error = pm_runtime_get_sync(&pdev->dev);
drivers/input/keyboard/omap4-keypad.c- if (error) {
drivers/input/keyboard/omap4-keypad.c- dev_err(&pdev->dev, "pm_runtime_get_sync() failed\n");
drivers/input/keyboard/omap4-keypad.c- goto err_unmap;
drivers/input/keyboard/omap4-keypad.c- }
--
drivers/dma/cppi41.c: ret = pm_runtime_get_sync(dev);
drivers/dma/cppi41.c- if (ret < 0)
drivers/dma/cppi41.c- goto err_get_sync;
drivers/dma/cppi41.c-
drivers/dma/cppi41.c- cdd->queues_rx = glue_info->queues_rx;
--
drivers/dma/sh/rcar-dmac.c: ret = pm_runtime_get_sync(&pdev->dev);
drivers/dma/sh/rcar-dmac.c- if (ret < 0) {
drivers/dma/sh/rcar-dmac.c- dev_err(&pdev->dev, "runtime PM get sync failed (%d)\n", ret);
drivers/dma/sh/rcar-dmac.c- return ret;
drivers/dma/sh/rcar-dmac.c- }
--
drivers/dma/sh/usb-dmac.c: ret = pm_runtime_get_sync(&pdev->dev);
drivers/dma/sh/usb-dmac.c- if (ret < 0) {
drivers/dma/sh/usb-dmac.c- dev_err(&pdev->dev, "runtime PM get sync failed (%d)\n", ret);
drivers/dma/sh/usb-dmac.c- return ret;
drivers/dma/sh/usb-dmac.c- }
--
drivers/gpio/gpio-zynq.c: ret = pm_runtime_get_sync(chip->dev);
drivers/gpio/gpio-zynq.c-
drivers/gpio/gpio-zynq.c- /*
drivers/gpio/gpio-zynq.c- * If the device is already active pm_runtime_get() will return 1 on
drivers/gpio/gpio-zynq.c- * success, but gpio_request still needs to return 0.
--
drivers/hid/i2c-hid/i2c-hid.c: ret = pm_runtime_get_sync(&client->dev);
drivers/hid/i2c-hid/i2c-hid.c- if (ret < 0) {
drivers/hid/i2c-hid/i2c-hid.c- hid->open--;
drivers/hid/i2c-hid/i2c-hid.c- goto done;
drivers/hid/i2c-hid/i2c-hid.c- }
--
drivers/pci/host/pci-dra7xx.c: ret = pm_runtime_get_sync(dev);
drivers/pci/host/pci-dra7xx.c- if (IS_ERR_VALUE(ret)) {
drivers/pci/host/pci-dra7xx.c- dev_err(dev, "pm_runtime_get_sync failed\n");
drivers/pci/host/pci-dra7xx.c- goto err_phy;
drivers/pci/host/pci-dra7xx.c- }
--
drivers/soc/ti/knav_dma.c: ret = pm_runtime_get_sync(kdev->dev);
drivers/soc/ti/knav_dma.c- if (ret < 0) {
drivers/soc/ti/knav_dma.c- dev_err(kdev->dev, "unable to enable pktdma, err %d\n", ret);
drivers/soc/ti/knav_dma.c- return ret;
drivers/soc/ti/knav_dma.c- }
--
drivers/soc/ti/knav_qmss_queue.c: ret = pm_runtime_get_sync(&pdev->dev);
drivers/soc/ti/knav_qmss_queue.c- if (ret < 0) {
drivers/soc/ti/knav_qmss_queue.c- dev_err(dev, "Failed to enable QMSS\n");
drivers/soc/ti/knav_qmss_queue.c- return ret;
drivers/soc/ti/knav_qmss_queue.c- }
--
drivers/spi/spi-tegra114.c: ret = pm_runtime_get_sync(tspi->dev);
drivers/spi/spi-tegra114.c- if (ret < 0) {
drivers/spi/spi-tegra114.c- dev_err(tspi->dev, "pm runtime failed, e = %d\n", ret);
drivers/spi/spi-tegra114.c- return ret;
drivers/spi/spi-tegra114.c- }
--
drivers/spi/spi-tegra114.c: ret = pm_runtime_get_sync(dev);
drivers/spi/spi-tegra114.c- if (ret < 0) {
drivers/spi/spi-tegra114.c- dev_err(dev, "pm runtime failed, e = %d\n", ret);
drivers/spi/spi-tegra114.c- return ret;
drivers/spi/spi-tegra114.c- }
--
drivers/spi/spi-tegra20-slink.c: ret = pm_runtime_get_sync(tspi->dev);
drivers/spi/spi-tegra20-slink.c- if (ret < 0) {
drivers/spi/spi-tegra20-slink.c- dev_err(tspi->dev, "pm runtime failed, e = %d\n", ret);
drivers/spi/spi-tegra20-slink.c- return ret;
drivers/spi/spi-tegra20-slink.c- }
--
drivers/spi/spi-tegra20-slink.c: ret = pm_runtime_get_sync(dev);
drivers/spi/spi-tegra20-slink.c- if (ret < 0) {
drivers/spi/spi-tegra20-slink.c- dev_err(dev, "pm runtime failed, e = %d\n", ret);
drivers/spi/spi-tegra20-slink.c- return ret;
drivers/spi/spi-tegra20-slink.c- }
--
drivers/spi/spi-ti-qspi.c: ret = pm_runtime_get_sync(qspi->dev);
drivers/spi/spi-ti-qspi.c- if (ret < 0) {
drivers/spi/spi-ti-qspi.c- dev_err(qspi->dev, "pm_runtime_get_sync() failed\n");
drivers/spi/spi-ti-qspi.c- return ret;
drivers/spi/spi-ti-qspi.c- }
--
drivers/spi/spi-ti-qspi.c: ret = pm_runtime_get_sync(qspi->dev);
drivers/spi/spi-ti-qspi.c- if (ret < 0) {
drivers/spi/spi-ti-qspi.c- dev_err(qspi->dev, "pm_runtime_get_sync() failed\n");
drivers/spi/spi-ti-qspi.c- return ret;
drivers/spi/spi-ti-qspi.c- }
--
drivers/spi/spi-omap2-mcspi.c: ret = pm_runtime_get_sync(mcspi->dev);
drivers/spi/spi-omap2-mcspi.c- if (ret < 0)
drivers/spi/spi-omap2-mcspi.c- return ret;
drivers/spi/spi-omap2-mcspi.c-
drivers/spi/spi-omap2-mcspi.c- ret = omap2_mcspi_setup_transfer(spi, NULL);
--
drivers/spi/spi-omap2-mcspi.c: ret = pm_runtime_get_sync(mcspi->dev);
drivers/spi/spi-omap2-mcspi.c- if (ret < 0)
drivers/spi/spi-omap2-mcspi.c- return ret;
drivers/spi/spi-omap2-mcspi.c-
drivers/spi/spi-omap2-mcspi.c- mcspi_write_reg(master, OMAP2_MCSPI_WAKEUPENABLE,
--
drivers/spi/spi-tegra20-sflash.c: ret = pm_runtime_get_sync(dev);
drivers/spi/spi-tegra20-sflash.c- if (ret < 0) {
drivers/spi/spi-tegra20-sflash.c- dev_err(dev, "pm runtime failed, e = %d\n", ret);
drivers/spi/spi-tegra20-sflash.c- return ret;
drivers/spi/spi-tegra20-sflash.c- }
--
drivers/spi/spi.c: ret = pm_runtime_get_sync(master->dev.parent);
drivers/spi/spi.c- if (ret < 0) {
drivers/spi/spi.c- dev_err(&master->dev, "Failed to power device: %d\n",
drivers/spi/spi.c- ret);
drivers/spi/spi.c- return;
--
drivers/spi/spi-img-spfi.c: ret = pm_runtime_get_sync(dev);
drivers/spi/spi-img-spfi.c- if (ret)
drivers/spi/spi-img-spfi.c- return ret;
drivers/spi/spi-img-spfi.c- spfi_reset(spfi);
drivers/spi/spi-img-spfi.c- pm_runtime_put(dev);
--
drivers/spi/spi-qup.c: ret = pm_runtime_get_sync(&pdev->dev);
drivers/spi/spi-qup.c- if (ret < 0)
drivers/spi/spi-qup.c- return ret;
drivers/spi/spi-qup.c-
drivers/spi/spi-qup.c- ret = spi_qup_set_state(controller, QUP_STATE_RESET);
--
drivers/net/ethernet/freescale/fec_main.c: ret = pm_runtime_get_sync(dev);
drivers/net/ethernet/freescale/fec_main.c- if (IS_ERR_VALUE(ret))
drivers/net/ethernet/freescale/fec_main.c- return ret;
drivers/net/ethernet/freescale/fec_main.c-
drivers/net/ethernet/freescale/fec_main.c- fep->mii_timeout = 0;
--
drivers/net/ethernet/freescale/fec_main.c: ret = pm_runtime_get_sync(dev);
drivers/net/ethernet/freescale/fec_main.c- if (IS_ERR_VALUE(ret))
drivers/net/ethernet/freescale/fec_main.c- return ret;
drivers/net/ethernet/freescale/fec_main.c-
drivers/net/ethernet/freescale/fec_main.c- fep->mii_timeout = 0;
--
drivers/net/ethernet/freescale/fec_main.c: ret = pm_runtime_get_sync(&fep->pdev->dev);
drivers/net/ethernet/freescale/fec_main.c- if (IS_ERR_VALUE(ret))
drivers/net/ethernet/freescale/fec_main.c- return ret;
drivers/net/ethernet/freescale/fec_main.c-
drivers/net/ethernet/freescale/fec_main.c- pinctrl_pm_select_default_state(&fep->pdev->dev);
--
sound/soc/tegra/tegra30_ahub.c: ret = pm_runtime_get_sync(dev);
sound/soc/tegra/tegra30_ahub.c- if (ret < 0)
sound/soc/tegra/tegra30_ahub.c- return ret;
sound/soc/tegra/tegra30_ahub.c- ret = regcache_sync(ahub->regmap_ahub);
sound/soc/tegra/tegra30_ahub.c- ret |= regcache_sync(ahub->regmap_apbif);
--
sound/soc/tegra/tegra30_i2s.c: ret = pm_runtime_get_sync(dev);
sound/soc/tegra/tegra30_i2s.c- if (ret < 0)
sound/soc/tegra/tegra30_i2s.c- return ret;
sound/soc/tegra/tegra30_i2s.c- ret = regcache_sync(i2s->regmap);
sound/soc/tegra/tegra30_i2s.c- pm_runtime_put(dev);
--
sound/soc/codecs/tas2552.c: ret = pm_runtime_get_sync(codec->dev);
sound/soc/codecs/tas2552.c- if (ret < 0) {
sound/soc/codecs/tas2552.c- dev_err(codec->dev, "Enabling device failed: %d\n",
sound/soc/codecs/tas2552.c- ret);
sound/soc/codecs/tas2552.c- goto probe_fail;
--
sound/soc/codecs/wm8962.c: ret = pm_runtime_get_sync(codec->dev);
sound/soc/codecs/wm8962.c- if (ret < 0) {
sound/soc/codecs/wm8962.c- dev_err(codec->dev, "Failed to resume device: %d\n", ret);
sound/soc/codecs/wm8962.c- return ret;
sound/soc/codecs/wm8962.c- }
--
sound/soc/codecs/wm8962.c: ret = pm_runtime_get_sync(dev);
sound/soc/codecs/wm8962.c- if (ret < 0) {
sound/soc/codecs/wm8962.c- dev_err(dev, "Failed to resume: %d\n", ret);
sound/soc/codecs/wm8962.c- return IRQ_NONE;
sound/soc/codecs/wm8962.c- }
--
sound/soc/intel/atom/sst/sst_drv_interface.c: ret = pm_runtime_get_sync(dev);
sound/soc/intel/atom/sst/sst_drv_interface.c-
sound/soc/intel/atom/sst/sst_drv_interface.c- dev_dbg(ctx->dev, "Enable: pm usage count: %d\n", usage_count);
sound/soc/intel/atom/sst/sst_drv_interface.c- if (ret < 0) {
sound/soc/intel/atom/sst/sst_drv_interface.c- dev_err(ctx->dev, "Runtime get failed with err: %d\n", ret);
--
sound/soc/intel/atom/sst/sst_drv_interface.c: retval = pm_runtime_get_sync(ctx->dev);
sound/soc/intel/atom/sst/sst_drv_interface.c- if (retval < 0)
sound/soc/intel/atom/sst/sst_drv_interface.c- return retval;
sound/soc/intel/atom/sst/sst_drv_interface.c-
sound/soc/intel/atom/sst/sst_drv_interface.c- str_id = sst_get_stream(ctx, str_params);
--
sound/soc/intel/atom/sst/sst_drv_interface.c: ret_val = pm_runtime_get_sync(ctx->dev);
sound/soc/intel/atom/sst/sst_drv_interface.c- if (ret_val < 0)
sound/soc/intel/atom/sst/sst_drv_interface.c- return ret_val;
sound/soc/intel/atom/sst/sst_drv_interface.c-
sound/soc/intel/atom/sst/sst_drv_interface.c- ret_val = sst_send_byte_stream_mrfld(ctx, bytes);
--
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