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[media] drivers/media/media-devnode: clear private_data before put_device()

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Callbacks invoked from put_device() may free the struct media_devnode
pointer, so any cleanup needs to be done before put_device().

Signed-off-by: Max Kellermann <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Max Kellermann 2016-03-21 10:30:28 -03:00 • committed by Mauro Carvalho Chehab
commit bf244f665d
1 changed files with 2 additions and 1 deletions
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3
drivers/media/media-devnode.c
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@ -197,10 +197,11 @@ static int media_release(struct inode *inode, struct file *filp)
if (mdev->fops->release)
mdev->fops->release(filp);
filp->private_data = NULL;
/* decrease the refcount unconditionally since the release()
return value is ignored. */
put_device(&mdev->dev);
filp->private_data = NULL;
return 0;
}