Re: [PATCH v7 1/3] Staging: zram: Fix access of NULL pointer

[Minchan Kim]

On Wed, Oct 30, 2013 at 04:40:54AM +0530, Rashika Kheria wrote:
> This patch fixes the bug in reset_store caused by accessing NULL pointer.
> 
> The bdev gets its value from bdget_disk() which could fail when memory
> pressure is severe and hence can return NULL because allocation of
> inode in bdget could fail.
> 
> Hence, this patch introduces a check for bdev to prevent reference to a
> NULL pointer in the later part of the code. It also removes unnecessary
> check of bdev for fsync_bdev().
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Rashika Kheria <rashika.kheria@xxxxxxxxx>
Acked-by: Minchan Kim <minchan@xxxxxxxxxx>

-- 
Kind regards,
Minchan Kim
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