drm/imx: parallel-display: check return code from of_get_drm_display_mode()
of_get_drm_display_mode() may fail. Check its return code and bail out
on error.
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index 7b7bb31..4abac21 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -73,10 +73,16 @@
if (np) {
struct drm_display_mode *mode = drm_mode_create(connector->dev);
+ int ret;
if (!mode)
return -EINVAL;
- of_get_drm_display_mode(np, &imxpd->mode, OF_USE_NATIVE_MODE);
+
+ ret = of_get_drm_display_mode(np, &imxpd->mode,
+ OF_USE_NATIVE_MODE);
+ if (ret)
+ return ret;
+
drm_mode_copy(mode, &imxpd->mode);
mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
drm_mode_probed_add(connector, mode);