Re: [PATCH][next] null_blk: Fix null pointer dereference on nullb->disk on blk_cleanup_disk call

[Chaitanya Kulkarni]

On 6/2/21 03:07, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> The error handling on a nullb->disk allocation currently jumps to
> out_cleanup_disk that calls blk_cleanup_disk with a null pointer causing
> a null pointer dereference issue. Fix this by jumping to out_cleanup_tags
> instead.
>
> Addresses-Coverity: ("Dereference after null check")
> Fixes: 132226b301b5 ("null_blk: convert to blk_alloc_disk/blk_cleanup_disk")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Looks good.

Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx>