drm/radeon/kms: fix return value from fence function.

We only want to return here for errors, the wait functions return
a positive timeout otherwise, which gets back to userspace and
causes X to crash here.

Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index 78743cd7043..cb4cd97ae39 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -197,7 +197,7 @@ retry:
                 r = wait_event_interruptible_timeout(rdev->fence_drv.queue,
                                 radeon_fence_signaled(fence), timeout);
                 radeon_irq_kms_sw_irq_put(rdev);
-                if (unlikely(r != 0))
+                if (unlikely(r < 0))
                         return r;
         } else {
                 radeon_irq_kms_sw_irq_get(rdev);