All of
 help / color / mirror / Atom feed
* [PATCH] media: ti-vpe: Fix a missing check and reference count leak
@ 2020-06-14  2:56 wu000273
  0 siblings, 0 replies; only message in thread
From: wu000273 @ 2020-06-14  2:56 UTC (permalink / raw)
  To: kjlu
  Cc: wu000273, Benoit Parrot, Mauro Carvalho Chehab, Archit Taneja,
	Kamil Debski, Hans Verkuil, linux-media, linux-kernel

From: Qiushi Wu <>

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code, causing incorrect ref count if
pm_runtime_put_noidle() is not called in error handling paths.
And also, when the call of function vpe_runtime_get() failed,
we won't call vpe_runtime_put().
Thus call pm_runtime_put_noidle() if pm_runtime_get_sync() fails
inside vpe_runtime_get().

Fixes: 4571912743ac ("[media] v4l: ti-vpe: Add VPE mem to mem driver")
Signed-off-by: Qiushi Wu <>
 drivers/media/platform/ti-vpe/vpe.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
index cff2fcd6d812..82d3ee45e2e9 100644
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -2475,6 +2475,8 @@ static int vpe_runtime_get(struct platform_device *pdev)
 	r = pm_runtime_get_sync(&pdev->dev);
 	WARN_ON(r < 0);
+	if (r)
+		pm_runtime_put_noidle(&pdev->dev);
 	return r < 0 ? r : 0;

^ permalink raw reply related	[flat|nested] only message in thread

only message in thread, other threads:[~2020-06-14  2:56 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-06-14  2:56 [PATCH] media: ti-vpe: Fix a missing check and reference count leak wu000273

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.