drm/ttm: fix memory leak noticed by kmemleak.

If we don't need the zone we need to free it.

Acked-By: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index 8bfde5f40841..f5245c02b8fd 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c
@@ -323,8 +323,10 @@ static int ttm_mem_init_dma32_zone(struct ttm_mem_global *glob,
          * No special dma32 zone needed.
          */
 
-        if (mem <= ((uint64_t) 1ULL << 32))
+        if (mem <= ((uint64_t) 1ULL << 32)) {
+                kfree(zone);
                 return 0;
+        }
 
         /*
          * Limit max dma32 memory to 4GB for now