From: Linus Walleij <linus.walleij@stericsson.com>
Date: Tue, 4 Jan 2011 23:44:32 +0000 (+0100)
Subject: mmc: fix division by zero in MMC core
X-Git-Tag: v2.6.38-rc1~418^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e9b86841b372de01ae865080118e29159d8b7c39;p=pandora-kernel.git

mmc: fix division by zero in MMC core

The card is not always clocked and the clock frequency zero is perfectly
legal, thus this code in mmc_set_data_timeout() may cause a division by
zero. It will be triggered more often if you're using software clock
gating but can be triggered under other conditions too.

Reported-by: Pierre Tardy <tardyp@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Reviewed-by: Chris Ball <cjb@laptop.org>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---

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