linux-kernel - [PATCH 64/78] media: core: use pm_runtime_resume_and

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Date:   Sat, 24 Apr 2021 08:45:14 +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>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Subject: [PATCH 64/78] media: core: 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/qcom/venus/core.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index 54bac7ec14c5..c156320fa256 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -84,7 +84,7 @@ static void venus_sys_error_handler(struct work_struct *work)
 			container_of(work, struct venus_core, work.work);
 	int ret = 0;
 
-	pm_runtime_get_sync(core->dev);
+	pm_runtime_resume_and_get(core->dev);
 
 	hfi_core_deinit(core, true);
 
@@ -106,7 +106,7 @@ static void venus_sys_error_handler(struct work_struct *work)
 
 	hfi_reinit(core);
 
-	pm_runtime_get_sync(core->dev);
+	pm_runtime_resume_and_get(core->dev);
 
 	ret |= venus_boot(core);
 	ret |= hfi_core_resume(core, true);
@@ -305,21 +305,21 @@ static int venus_probe(struct platform_device *pdev)
 
 	pm_runtime_enable(dev);
 
-	ret = pm_runtime_get_sync(dev);
+	ret = pm_runtime_resume_and_get(dev);
 	if (ret < 0)
 		goto err_runtime_disable;
 
 	ret = of_platform_populate(dev->of_node, NULL, NULL, dev);
 	if (ret)
-		goto err_runtime_disable;
+		goto err_pm;
 
 	ret = venus_firmware_init(core);
 	if (ret)
-		goto err_runtime_disable;
+		goto err_pm;
 
 	ret = venus_boot(core);
 	if (ret)
-		goto err_runtime_disable;
+		goto err_pm;
 
 	ret = hfi_core_resume(core, true);
 	if (ret)
@@ -351,8 +351,9 @@ static int venus_probe(struct platform_device *pdev)
 	v4l2_device_unregister(&core->v4l2_dev);
 err_venus_shutdown:
 	venus_shutdown(core);
-err_runtime_disable:
+err_pm:
 	pm_runtime_put_noidle(dev);
+err_runtime_disable:
 	pm_runtime_set_suspended(dev);
 	pm_runtime_disable(dev);
 	hfi_destroy(core);
@@ -371,7 +372,7 @@ static int venus_remove(struct platform_device *pdev)
 	struct device *dev = core->dev;
 	int ret;
 
-	ret = pm_runtime_get_sync(dev);
+	ret = pm_runtime_resume_and_get(dev);
 	WARN_ON(ret < 0);
 
 	ret = hfi_core_deinit(core, true);
@@ -403,7 +404,7 @@ static void venus_core_shutdown(struct platform_device *pdev)
 {
 	struct venus_core *core = platform_get_drvdata(pdev);
 
-	pm_runtime_get_sync(core->dev);
+	pm_runtime_resume_and_get(core->dev);
 	venus_shutdown(core);
 	venus_firmware_deinit(core);
 	pm_runtime_put_sync(core->dev);
-- 
2.30.2