commit 046d669c62f37323ef0329c41d83a03c06b2087d
author Krzysztof Kolasa <kkolasa@winsoft.pl> Sun Mar 15 20:22:36 2015 +0100
committer Dave Airlie <airlied@redhat.com> Mon Mar 16 06:28:50 2015 +1000
tree ade52f7d590c7dbb0d73a95b29960c2ccce664f9
parent 6981e2af36b0d96404b60df29e90068855a81225

[PATCH] drm/mm: Fix support 4 GiB and larger ranges

bad argument if(tmp)... in check_free_hole

fix oops: kernel BUG at drivers/gpu/drm/drm_mm.c:305!

[airlied: excellent, this was my task for today].

Signed-off-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Reviewed-by: Chris wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/drm_mm.c

diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index 7fc6f8b..1134526 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -403,7 +403,7 @@
 		unsigned rem;
 
 		rem = do_div(tmp, alignment);
-		if (tmp)
+		if (rem)
 			start += alignment - rem;
 	}