Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_crtc.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index b14496e..75f66a5 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -3108,6 +3108,11 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev,
goto out;
}
+ if (!crtc->funcs->gamma_set) {
+ ret = -ENOSYS;
+ goto out;
+ }
+
crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
out:
--
1.7.9.5
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