[PATCH][next] drm/panel: ILI9881c: fix missing assignment to error return ret

From: Colin King
Date: Tue Jun 26 2018 - 12:04:01 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Currently, ret is being checked for an error condition however it
is not being assigned in the previous statement on the call of
function mipi_dsi_dcs_exit_sleep_mode. Add in the missing assignment
of ret.

Detected by CoverityScan, CID#1470174, 1470178 ("Unchecked return value")

Fixes: 26aec25593c2 ("drm/panel: Add Ilitek ILI9881c panel driver")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
index e848af235df5..3ad4a46c4e94 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -334,7 +334,7 @@ static int ili9881c_prepare(struct drm_panel *panel)
if (ret)
return ret;

- mipi_dsi_dcs_exit_sleep_mode(ctx->dsi);
+ ret = mipi_dsi_dcs_exit_sleep_mode(ctx->dsi);
if (ret)
return ret;

--
2.17.1