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[01/11] intel: Validate bo_fake before using.

Message ID 1428655383-26087-2-git-send-email-praveen.paneri@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Praveen Paneri April 10, 2015, 8:42 a.m. UTC 
Check on bo_fake before dereferencing the object in functions
evict_lru and evict_mru.

Signed-off-by: Praveen Paneri <praveen.paneri@intel.com>
---
 intel/intel_bufmgr_fake.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)
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Patch

diff --git a/intel/intel_bufmgr_fake.c b/intel/intel_bufmgr_fake.c
index c4828fa..129d344 100644
--- a/intel/intel_bufmgr_fake.c
+++ b/intel/intel_bufmgr_fake.c
@@ -557,8 +557,10 @@  evict_lru(drm_intel_bufmgr_fake *bufmgr_fake, unsigned int max_fence)
 							    max_fence))
 			return 0;
 
-		set_dirty(&bo_fake->bo);
-		bo_fake->block = NULL;
+		if (bo_fake) {
+			set_dirty(&bo_fake->bo);
+			bo_fake->block = NULL;
+		}
 
 		free_block(bufmgr_fake, block, 0);
 		return 1;
@@ -577,11 +579,13 @@  evict_mru(drm_intel_bufmgr_fake *bufmgr_fake)
 	DRMLISTFOREACHSAFEREVERSE(block, tmp, &bufmgr_fake->lru) {
 		drm_intel_bo_fake *bo_fake = (drm_intel_bo_fake *) block->bo;
 
-		if (bo_fake && (bo_fake->flags & BM_NO_FENCE_SUBDATA))
-			continue;
+		if (bo_fake) {
+			if (bo_fake->flags & BM_NO_FENCE_SUBDATA)
+				continue;
 
-		set_dirty(&bo_fake->bo);
-		bo_fake->block = NULL;
+			set_dirty(&bo_fake->bo);
+			bo_fake->block = NULL;
+		}
 
 		free_block(bufmgr_fake, block, 0);
 		return 1;