From: Marcin Slusarz <marcin.slusarz@gmail.com>
Date: Sun, 27 Jan 2013 14:51:09 +0000 (+0100)
Subject: drm/nouveau/fan: fix selection of fan speed when fan->get returns an error
X-Git-Tag: v3.9-rc1~83^2~10^2~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc3109a2cb294335bcf3c5db5e16ae5fe68849f2;p=pandora-kernel.git

drm/nouveau/fan: fix selection of fan speed when fan->get returns an error

fan->get returns int, but we write it to unsigned variable, and then check
whether it's >= 0 (it always is)

Found by smatch:
drivers/gpu/drm/nouveau/core/subdev/therm/fan.c:61 nouveau_fan_update() warn: always true condition '(duty >= 0) => (0-u32max >= 0)'

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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