diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 58176db85952cb990f3af9f511c91c007e3a7687..95006cbf42c313b8295c596038fa6fc96bd57075 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -828,7 +828,7 @@ int radeon_enable_vblank_kms(struct drm_crtc *crtc)
 	unsigned long irqflags;
 	int r;
 
-	if (pipe < 0 || pipe >= rdev->num_crtc) {
+	if (pipe >= rdev->num_crtc) {
 		DRM_ERROR("Invalid crtc %d\n", pipe);
 		return -EINVAL;
 	}
@@ -854,7 +854,7 @@ void radeon_disable_vblank_kms(struct drm_crtc *crtc)
 	struct radeon_device *rdev = dev->dev_private;
 	unsigned long irqflags;
 
-	if (pipe < 0 || pipe >= rdev->num_crtc) {
+	if (pipe >= rdev->num_crtc) {
 		DRM_ERROR("Invalid crtc %d\n", pipe);
 		return;
 	}