[PATCH] drm: radeon: fix error value sign

[Vasiliy Kulikov]

enable_vblank implementations should use negative result to indicate error.
radeon_enable_vblank() returns EINVAL in this case.  Change this to -EINVAL.

Signed-off-by: Vasiliy Kulikov <segoon at openwall.com>
---
 Compile tested.

 drivers/gpu/drm/radeon/radeon_irq.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_irq.c 
b/drivers/gpu/drm/radeon/radeon_irq.c
index 2f349a3..465746b 100644
--- a/drivers/gpu/drm/radeon/radeon_irq.c
+++ b/drivers/gpu/drm/radeon/radeon_irq.c
@@ -76,7 +76,7 @@ int radeon_enable_vblank(struct drm_device *dev, int crtc)
                default:
                        DRM_ERROR("tried to enable vblank on non-existent crtc 
%d\n",
                                  crtc);
-                       return EINVAL;
+                       return -EINVAL;
                }
        } else {
                switch (crtc) {
@@ -89,7 +89,7 @@ int radeon_enable_vblank(struct drm_device *dev, int crtc)
                default:
                        DRM_ERROR("tried to enable vblank on non-existent crtc 
%d\n",
                                  crtc);
-                       return EINVAL;
+                       return -EINVAL;
                }
        }

-- 
1.7.0.4