[PATCH v3 19/79] media: sun8i_rotate: fix pm_runtime_get_sync() usage count

Mauro Carvalho Chehab mchehab+huawei at kernel.org
Tue Apr 27 11:26:09 BST 2021


The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
Replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter and avoid memory
leaks.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei at kernel.org>
---
 drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c b/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c
index 3f81dd17755c..fbcca59a0517 100644
--- a/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c
+++ b/drivers/media/platform/sunxi/sun8i-rotate/sun8i_rotate.c
@@ -494,7 +494,7 @@ static int rotate_start_streaming(struct vb2_queue *vq, unsigned int count)
 		struct device *dev = ctx->dev->dev;
 		int ret;
 
-		ret = pm_runtime_get_sync(dev);
+		ret = pm_runtime_resume_and_get(dev);
 		if (ret < 0) {
 			dev_err(dev, "Failed to enable module\n");
 
-- 
2.30.2




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