Re: [PATCH] fs-udf: Delete an unnecessary check before brelse()

From: Jan Kara
Date: Wed Sep 04 2019 - 03:48:34 EST


On Tue 03-09-19 21:15:58, Markus Elfring wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Tue, 3 Sep 2019 21:12:09 +0200
>
> The brelse() function tests whether its argument is NULL
> and then returns immediately.
> Thus the test around the call is not needed.
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>

Thanks for the patch. Added to my tree.

Honza

> ---
> fs/udf/super.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/fs/udf/super.c b/fs/udf/super.c
> index 56da1e1680ea..0cd0be642a2f 100644
> --- a/fs/udf/super.c
> +++ b/fs/udf/super.c
> @@ -273,8 +273,7 @@ static void udf_sb_free_bitmap(struct udf_bitmap *bitmap)
> int nr_groups = bitmap->s_nr_groups;
>
> for (i = 0; i < nr_groups; i++)
> - if (bitmap->s_block_bitmap[i])
> - brelse(bitmap->s_block_bitmap[i]);
> + brelse(bitmap->s_block_bitmap[i]);
>
> kvfree(bitmap);
> }
> --
> 2.23.0
>
>
--
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR