From 3655d54af8dd85788c3e5088387469703a0f8f12 Mon Sep 17 00:00:00 2001 From: Darren Jenkins Date: Wed, 30 Dec 2009 12:20:05 +1100 Subject: [PATCH] drm/radeon/radeon_fence.c: move a dereference below the NULL test If a NULL value is possible, the dereference should only occur after the NULL test. Coverity CID: 13334 Signed-off-by: Darren Jenkins Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_fence.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c index 4cdd8b4..8495d4e 100644 --- a/drivers/gpu/drm/radeon/radeon_fence.c +++ b/drivers/gpu/drm/radeon/radeon_fence.c @@ -140,16 +140,15 @@ 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) return true; - } - if (fence == NULL) { + + if (fence->rdev->gpu_lockup) return true; - } + write_lock_irqsave(&fence->rdev->fence_drv.lock, irq_flags); signaled = fence->signaled; /* if we are shuting down report all fence as signaled */ -- 2.7.4