transmitter: Fix the return value of transmitter_output_enable

Change-Id: I630c26ecbc506052baf1c9ea3ab3f07be1ff393a
Signed-off-by: Naoko Tanibata <tnaoko@jp.adit-jv.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/waltham-transmitter/transmitter-plugin/output.c b/waltham-transmitter/transmitter-plugin/output.c
index c379ce5..b98e170 100644
--- a/waltham-transmitter/transmitter-plugin/output.c
+++ b/waltham-transmitter/transmitter-plugin/output.c
@@ -255,15 +255,20 @@ transmitter_assign_planes(struct weston_output *base) {
 	}
 }
 
-static void
+static int
 transmitter_output_enable(struct weston_output *base)
 {
 	struct weston_transmitter_output *output = wl_container_of(base, output, base);
-
+	if (!output) {
+		weston_log("No weston output found\n");
+		return -1;
+	}
 	output->base.assign_planes = transmitter_assign_planes;
 	output->base.set_backlight = NULL;
 	output->base.set_dpms = NULL;
 	output->base.switch_mode = NULL;
+
+	return 0;
 }
 
 int