"id" needs to be signed for the error handling to work.
Fixes: 7a2d5c77c558 ("drm/exynos: fimc: Convert driver to IPP v2 core API")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
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;
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