linux-kernel - [PATCH v4 59/79] media: sti/bdisp: use pm_runtime_resume_and

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Message-Id: <670d51fb0bec8497917cf9f4d13f77f9f8c04080.1619621413.git.mchehab+huawei@kernel.org>
Date:   Wed, 28 Apr 2021 16:52:20 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linuxarm@...wei.com, mauro.chehab@...wei.com,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Fabien Dessenne <fabien.dessenne@...com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: [PATCH v4 59/79] media: sti/bdisp: use pm_runtime_resume_and_get()

Commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
added pm_runtime_resume_and_get() in order to automatically handle
dev->power.usage_count decrement on errors.

Use the new API, in order to cleanup the error check logic.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
 drivers/media/platform/sti/bdisp/bdisp-v4l2.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/sti/bdisp/bdisp-v4l2.c b/drivers/media/platform/sti/bdisp/bdisp-v4l2.c
index 060ca85f64d5..85288da9d2ae 100644
--- a/drivers/media/platform/sti/bdisp/bdisp-v4l2.c
+++ b/drivers/media/platform/sti/bdisp/bdisp-v4l2.c
@@ -499,7 +499,7 @@ static int bdisp_start_streaming(struct vb2_queue *q, unsigned int count)
 {
 	struct bdisp_ctx *ctx = q->drv_priv;
 	struct vb2_v4l2_buffer *buf;
-	int ret = pm_runtime_get_sync(ctx->bdisp_dev->dev);
+	int ret = pm_runtime_resume_and_get(ctx->bdisp_dev->dev);
 
 	if (ret < 0) {
 		dev_err(ctx->bdisp_dev->dev, "failed to set runtime PM\n");
@@ -1364,10 +1364,10 @@ static int bdisp_probe(struct platform_device *pdev)
 
 	/* Power management */
 	pm_runtime_enable(dev);
-	ret = pm_runtime_get_sync(dev);
+	ret = pm_runtime_resume_and_get(dev);
 	if (ret < 0) {
 		dev_err(dev, "failed to set PM\n");
-		goto err_pm;
+		goto err_remove;
 	}
 
 	/* Filters */
@@ -1395,6 +1395,7 @@ static int bdisp_probe(struct platform_device *pdev)
 	bdisp_hw_free_filters(bdisp->dev);
 err_pm:
 	pm_runtime_put(dev);
+err_remove:
 	bdisp_debugfs_remove(bdisp);
 	v4l2_device_unregister(&bdisp->v4l2_dev);
 err_clk:
-- 
2.30.2