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Message-ID: <1261659120.3546.15.camel@ICE-BOX>
Date: Thu, 24 Dec 2009 23:52:00 +1100
From: Darren Jenkins <darrenrjenkins@...il.com>
To: David Airlie <airlied@...ux.ie>,
dri-devel mailing list <dri-devel@...ts.sourceforge.net>,
Kernel Janitors <kernel-janitors@...r.kernel.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: drivers/gpu/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 <darrenrjenkins@...il.com>
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c
b/drivers/gpu/drm/radeon/radeon_fence.c
index cb4cd97..f4f5942 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/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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