diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
index 4dfbfc7f3b84..5ce84025d1cb 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
@@ -1200,7 +1200,7 @@ static int fimc_setup_clocks(struct fimc_context *ctx)
 
 int exynos_drm_check_fimc_device(struct device *dev)
 {
-	unsigned int id = of_alias_get_id(dev->of_node, "fimc");
+	int id = of_alias_get_id(dev->of_node, "fimc");
 
 	if (id >= 0 && (BIT(id) & fimc_mask))
 		return 0;