Merge remote-tracking branches 'asoc/fix/atmel', 'asoc/fix/intel', 'asoc/fix/rt5645...

[cascardo/linux.git] / drivers / gpu / drm / radeon / radeon_kms.c

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 8309b11..0358676 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -795,6 +795,8 @@ int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
 
        /* Get associated drm_crtc: */
        drmcrtc = &rdev->mode_info.crtcs[crtc]->base;
+       if (!drmcrtc)
+               return -EINVAL;
 
        /* Helper routine in DRM core does all the work: */
        return drm_calc_vbltimestamp_from_scanoutpos(dev, crtc, max_error,