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authorLucas Stach <l.stach@pengutronix.de>2016-06-16 11:12:13 +0200
committerPhilipp Zabel <p.zabel@pengutronix.de>2016-07-12 18:24:29 +0200
commit7075ba7942b80704588cc60bce945519b0302ced (patch)
tree06fa284200d9dc8816970c113d82b520dd54ffc6 /drivers/gpu/drm/imx/imx-ldb.c
parent3df0739052c23989b441883fa251a0988f75c0f3 (diff)
downloadlinux-7075ba7942b80704588cc60bce945519b0302ced.tar.bz2
drm/imx: imx-ldb: check return code on panel attach
Check the return code on panel attach. Avoids a kernel crash later on if the attach failed. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'drivers/gpu/drm/imx/imx-ldb.c')
-rw-r--r--drivers/gpu/drm/imx/imx-ldb.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c
index 00d67b5407d8..5d2831dfb8b9 100644
--- a/drivers/gpu/drm/imx/imx-ldb.c
+++ b/drivers/gpu/drm/imx/imx-ldb.c
@@ -474,8 +474,12 @@ static int imx_ldb_register(struct drm_device *drm,
drm_connector_init(drm, &imx_ldb_ch->connector,
&imx_ldb_connector_funcs, DRM_MODE_CONNECTOR_LVDS);
- if (imx_ldb_ch->panel)
- drm_panel_attach(imx_ldb_ch->panel, &imx_ldb_ch->connector);
+ if (imx_ldb_ch->panel) {
+ ret = drm_panel_attach(imx_ldb_ch->panel,
+ &imx_ldb_ch->connector);
+ if (ret)
+ return ret;
+ }
drm_mode_connector_attach_encoder(&imx_ldb_ch->connector, encoder);