| Message ID | 20190724025644.17163-1-navid.emamdoost@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | rpi_touchscreen_probe: check for failure case | expand |
diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c index 28c0620dfe0f..2e0977e26fab 100644 --- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c +++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c @@ -399,6 +399,8 @@ static int rpi_touchscreen_probe(struct i2c_client *i2c, /* Look up the DSI host. It needs to probe before we do. */ endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); + if (!endpoint) + return -ENODEV; dsi_host_node = of_graph_get_remote_port_parent(endpoint); host = of_find_mipi_dsi_host_by_node(dsi_host_node); of_node_put(dsi_host_node);
of_graph_get_next_endpoint may return NULL, so null check is needed. Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> --- drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 2 ++ 1 file changed, 2 insertions(+)