From: Inki Dae <inki.dae@samsung.com>
Date: Wed, 23 May 2018 09:48:15 +0900
Subject: drm/exynos: scaler: fix static checker warning
Git-commit: 12678199c77d196ee23ca2cde4318b6a0e343687
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

drivers/gpu/drm/exynos/exynos_drm_scaler.c:402 scaler_task_done()
warn: signedness bug returning '(-22)'

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/exynos/exynos_drm_scaler.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/exynos/exynos_drm_scaler.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_scaler.c
@@ -397,7 +397,7 @@ static inline u32 scaler_get_int_status(
 	return scaler_read(SCALER_INT_STATUS);
 }
 
-static inline bool scaler_task_done(u32 val)
+static inline int scaler_task_done(u32 val)
 {
 	return val & SCALER_INT_STATUS_FRAME_END ? 0 : -EINVAL;
 }