From: Andries E. Brouwer <Andries.Brouwer@cwi.nl>
Date: Tue, 18 Dec 2007 00:19:55 +0000 (-0800)
Subject: ext3, ext4: avoid divide by zero
X-Git-Tag: v2.6.24-rc6~45
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b47b6f38e5202c924bfe7632dce5dda4e3d40731;p=pandora-kernel.git

ext3, ext4: avoid divide by zero

As it turns out, the kernel divides by EXT3_INODES_PER_GROUP(s) when
mounting an ext3 filesystem.  If that number is zero, a crash follows.
Below a patch.

This crash was reported by Joeri de Ruiter, Carst Tankink and Pim Vullers.

Cc: <linux-ext4@vger.kernel.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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