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Subject: media: bdisp: fix memleak on release
Author:  Johan Hovold <>
Date:    Thu Oct 10 10:13:31 2019 -0300

If a process is interrupted while accessing the video device and the
device lock is contended, release() could return early and fail to free
related resources.

Note that the return value of the v4l2 release file operation is

Fixes: 28ffeebbb7bd ("[media] bdisp: 2D blitter driver using v4l2 mem2mem 
Cc: stable <>     # 4.2
Signed-off-by: Johan Hovold <>
Reviewed-by: Fabien Dessenne <>
Signed-off-by: Hans Verkuil <>
Signed-off-by: Mauro Carvalho Chehab <>

 drivers/media/platform/sti/bdisp/bdisp-v4l2.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)


diff --git a/drivers/media/platform/sti/bdisp/bdisp-v4l2.c 
index e90f1ba30574..675b5f2b4c2e 100644
--- a/drivers/media/platform/sti/bdisp/bdisp-v4l2.c
+++ b/drivers/media/platform/sti/bdisp/bdisp-v4l2.c
@@ -651,8 +651,7 @@ static int bdisp_release(struct file *file)
        dev_dbg(bdisp->dev, "%s\n", __func__);
-       if (mutex_lock_interruptible(&bdisp->lock))
-               return -ERESTARTSYS;
+       mutex_lock(&bdisp->lock);

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