From: Dave Airlie <airlied@redhat.com>
Date: Tue, 8 Dec 2009 05:58:08 +0000 (+1000)
Subject: drm/ttm: fix memory leak noticed by kmemleak.
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=ec42a6e7dcfc2e9a92fad1c132bc9e110fafeb3f;p=deliverable%2Flinux.git

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>
---

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