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Date: Wed, 30 Oct 2013 11:24:30 +0900 From: Minchan Kim <minchan@...nel.org> To: Rashika Kheria <rashika.kheria@...il.com> Cc: opw-kernel@...glegroups.com, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiang Liu <jiang.liu@...wei.com>, Nitin Gupta <ngupta@...are.org>, Jerome Marchand <jmarchand@...hat.com>, linux-kernel@...r.kernel.org, stable@...r.kernel.org Subject: Re: [PATCH v7 1/3] Staging: zram: Fix access of NULL pointer 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@...r.kernel.org > Signed-off-by: Rashika Kheria <rashika.kheria@...il.com> Acked-by: Minchan Kim <minchan@...nel.org> -- Kind regards, Minchan Kim -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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