On 02/25/2014 02:08 AM, Minchan Kim wrote:
> zram_meta_alloc could be failed so caller should check it.
> Otherwise, your system will be hang.
>
> Cc: <sta...@vger.kernel.org>
> Signed-off-by: Minchan Kim <minc...@kernel.org>
Acked-by: Jerome Marchand <jmarc...@redhat.com>
> ---
> drivers/block/zram/zram_drv.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
> index 5ec61be793d2..21aee3edcb25 100644
> --- a/drivers/block/zram/zram_drv.c
> +++ b/drivers/block/zram/zram_drv.c
> @@ -554,6 +554,8 @@ static ssize_t disksize_store(struct device *dev,
>
> disksize = PAGE_ALIGN(disksize);
> meta = zram_meta_alloc(disksize);
> + if (!meta)
> + return -ENOMEM;
> down_write(&zram->init_lock);
> if (init_done(zram)) {
> up_write(&zram->init_lock);
>
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