[PATCH] drm/radeon/radeon_fence.c: move a dereference below theNULL test

From: Darren Jenkins
Date: Tue Dec 29 2009 - 20:20:23 EST


If a NULL value is possible, the dereference should only occur after the
NULL test.

Coverity CID: 13334

Signed-off-by: Darren Jenkins <darrenrjenkins@xxxxxxxxx>

diff --git drivers/gpu/drm/radeon/radeon_fence.c drivers/gpu/drm/radeon/radeon_fence.c
index 4cdd8b4..f3a8380 100644
--- drivers/gpu/drm/radeon/radeon_fence.c
+++ drivers/gpu/drm/radeon/radeon_fence.c
@@ -140,14 +140,14 @@ int radeon_fence_create(struct radeon_device *rdev, struct radeon_fence **fence)

bool radeon_fence_signaled(struct radeon_fence *fence)
{
- struct radeon_device *rdev = fence->rdev;
unsigned long irq_flags;
bool signaled = false;

- if (rdev->gpu_lockup) {
+ if (fence == NULL) {
return true;
}
- if (fence == NULL) {
+
+ if (fence->rdev->gpu_lockup) {
return true;
}
write_lock_irqsave(&fence->rdev->fence_drv.lock, irq_flags);


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