From: Dan Carpenter <error27@gmail.com>
Date: Sat, 17 Jul 2010 10:28:02 +0000 (+0200)
Subject: drm: radeon: fix sign bug
X-Git-Tag: v2.6.36-rc1~540^2~20^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=167ffc44caaee68ea60dadf6931a4d195a4ed1f0;p=pandora-kernel.git

drm: radeon: fix sign bug

The "error" variable is unsigned so it's never less than zero.  I
changed it to check if (freq < current_freq) directly.

"best_error" is also unsigned so "best_error - 100" could be a large
number instead of a negative.  Since "error" is unsigned it is never
less than a negative and so the cases where "best_error" is less than or
equal to 100 are false.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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