From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Date: Fri, 23 Apr 2021 15:19:21 +0000 (+0200)
Subject: media: stm32: use pm_runtime_resume_and_get()
X-Git-Tag: accepted/tizen/unified/20230118.172025~6722^2~267
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=75c573eb704178051637fdcd980e2850e0932080;p=platform%2Fkernel%2Flinux-rpi.git

media: stm32: 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@kernel.org>
---

diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c
index d9b4ad0..b33c6e7 100644
--- a/drivers/media/platform/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/stm32/stm32-dcmi.c
@@ -723,11 +723,11 @@ static int dcmi_start_streaming(struct vb2_queue *vq, unsigned int count)
 	u32 val = 0;
 	int ret;
 
-	ret = pm_runtime_get_sync(dcmi->dev);
+	ret = pm_runtime_resume_and_get(dcmi->dev);
 	if (ret < 0) {
 		dev_err(dcmi->dev, "%s: Failed to start streaming, cannot get sync (%d)\n",
 			__func__, ret);
-		goto err_pm_put;
+		goto err_unlocked;
 	}
 
 	ret = media_pipeline_start(&dcmi->vdev->entity, &dcmi->pipeline);
@@ -848,6 +848,7 @@ err_media_pipeline_stop:
 
 err_pm_put:
 	pm_runtime_put(dcmi->dev);
+err_unlocked:
 	spin_lock_irq(&dcmi->irqlock);
 	/*
 	 * Return all buffers to vb2 in QUEUED state.