Re: [PATCH 10/21] ext4: Remove unnecessary release when memory allocation failed in ext4_mb_init_cache

[Ojaswin Mujoo]

On Fri, Feb 10, 2023 at 03:48:14AM +0800, Kemeng Shi wrote:
> If we alloc array of buffer_head failed, there is no resource need to be
> freed and we can simpily return error.
> 
> Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
> ---
>  fs/ext4/mballoc.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
> index ad9e3b7d3198..15fc7105becc 100644
> --- a/fs/ext4/mballoc.c
> +++ b/fs/ext4/mballoc.c
> @@ -1168,10 +1168,8 @@ static int ext4_mb_init_cache(struct page *page, char *incore, gfp_t gfp)
>  	if (groups_per_page > 1) {
>  		i = sizeof(struct buffer_head *) * groups_per_page;
>  		bh = kzalloc(i, gfp);
> -		if (bh == NULL) {
> -			err = -ENOMEM;
> -			goto out;
> -		}
> +		if (bh == NULL)
> +			return -ENOMEM;
>  	} else
>  		bh = &bhs;
>  
> -- 
> 2.30.0
> 
Feel free to add:

Reviewed-by: Ojaswin Mujoo <ojaswin@xxxxxxxxxxxxx>