From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Thu, 17 May 2012 11:27:19 +0000 (+0200)
Subject: drm: Delete the vblank timer synchronously at cleanup time
X-Git-Tag: v3.5-rc1~100^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7eb3b2c83dccddec34787adf67c10c82331d262e;p=pandora-kernel.git

drm: Delete the vblank timer synchronously at cleanup time

A race condition exists in drm_vblank_cleanup() if the vblank disable
timer callback runs after freeing the memory that its callback function
tries to access. Fix this by deleting the timer synchronously.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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