drm: use format %d to print error code

It is more readable by printing "ret = -1" than "ret = 0xffffffff"

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Yuanhan Liu 2012-06-16 22:25:24 +08:00 • committed by Dave Airlie
commit 4ef7fe7c66