[PATCH V2] drm/rockchip: vop2: Add error check to devm_regmap_init_mmio

[Alfredo Cruz]

devm_regmap_init_mmio() may return an invalid pointer in case of an error.
This patch adds the corresponding IS_ERR check to vop2->map.

Signed-off-by: Alfredo Cruz <alfredo.carlon at gmail.com>
---
V1 -> V2: Added description and Signed-off

 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index 03ca32cd2050..4bde2d354462 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -2680,6 +2680,8 @@ static int vop2_bind(struct device *dev, struct device *master, void *data)
 	vop2->len = resource_size(res);
 
 	vop2->map = devm_regmap_init_mmio(dev, vop2->regs, &vop2_regmap_config);
+	if (IS_ERR(vop2->map))
+		return PTR_ERR(vop2->map);
 
 	ret = vop2_win_init(vop2);
 	if (ret)
-- 
2.39.2