Re: [PATCH] drivers/media/media-devnode: add missing mutex lock in error handler

[Mauro Carvalho Chehab]

Em Mon, 21 Mar 2016 12:33:12 +0100
Max Kellermann <max@xxxxxxxxxxx> escreveu:


Please, always send us your Signed-off-by on your patches, as described at:
	https://linuxtv.org/wiki/index.php/Development:_Submitting_Patches#Developer.27s_Certificate_of_Origin_1.1

Also, please add a description to the patch.

Thanks,
Mauro

> ---
>  drivers/media/media-devnode.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/media/media-devnode.c b/drivers/media/media-devnode.c
> index cea35bf..4d7e8dd 100644
> --- a/drivers/media/media-devnode.c
> +++ b/drivers/media/media-devnode.c
> @@ -266,8 +266,11 @@ int __must_check media_devnode_register(struct media_devnode *mdev,
>  	return 0;
>  
>  error:
> +	mutex_lock(&media_devnode_lock);
>  	cdev_del(&mdev->cdev);
>  	clear_bit(mdev->minor, media_devnode_nums);
> +	mutex_unlock(&media_devnode_lock);
> +
>  	return ret;
>  }
>  
> 
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-- 
Thanks,
Mauro