testdisplay: return 0 when successful

We use the "ret" variable to check function return values, and these
values are not necessarily 0 on the successful cases, so we need to
reset "ret" after we finish using it.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 0 deletions

diff --git a/tests/testdisplay.c b/tests/testdisplay.c
index d650537..01f31dc 100644
--- a/tests/testdisplay.c
+++ b/tests/testdisplay.c
@@ -1136,6 +1136,8 @@ int main(int argc, char **argv)
 		goto out_stdio_off;
 	}
 
+	ret = 0;
+
 	if (!update_display()) {
 		ret = 1;
 		goto out_stdio_off;