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authorThomas Hellstrom <thellstrom@vmware.com>2010-02-12 00:17:59 +0100
committerDave Airlie <airlied@redhat.com>2010-02-15 11:19:14 +1000
commit775c67090c98780b44c4f95d5c05565df715b8bd (patch)
tree8326fb57dc82a90fb609f1fe5d32372aba3ea6f0 /drivers/gpu
parent724e6d3fe8003c3f60bf404bf22e4e331327c596 (diff)
drm: Fix a bug in the range manager.
When searching for free space in a range, the function could return a node extending outside of the given range. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/drm_mm.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index cdec3297712..2ac074c8f5d 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -405,7 +405,8 @@ struct drm_mm_node *drm_mm_search_free_in_range(const struct drm_mm *mm,
wasted += alignment - tmp;
}
- if (entry->size >= size + wasted) {
+ if (entry->size >= size + wasted &&
+ (entry->start + wasted + size) <= end) {
if (!best_match)
return entry;
if (entry->size < best_size) {