drm_vblank_get: don't WARN_ON in case vblanks are not initialized



Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

parent 06b718c0

drivers/gpu/drm/drm_irq.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1056,6 +1056,9 @@ int drm_vblank_get(struct drm_device *dev, int crtc)
		unsigned long irqflags;
		int ret = 0;

		if (!dev->num_crtcs)
		return -EINVAL;

		if (WARN_ON(crtc >= dev->num_crtcs))
		return -EINVAL;