[PATCH v2] gpu: anx7808: fix a missing check in anx78xx_poweron

[Kangjie Lu]

Both anx78xx_set_bits() and anx78xx_clear_bits() in the poweron process
may fail. The fix inserts checks for their return values.

Signed-off-by: Kangjie Lu <kjlu at umn.edu>
---
 drivers/gpu/drm/bridge/analogix-anx78xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/bridge/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix-anx78xx.c
index 3b0fe2b188db..4f35aced65a0 100644
--- a/drivers/gpu/drm/bridge/analogix-anx78xx.c
+++ b/drivers/gpu/drm/bridge/analogix-anx78xx.c
@@ -646,6 +646,7 @@ static void anx78xx_poweron(struct anx78xx *anx78xx)
 				err);
 		return;
 	}
+
 	err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2],
 			SP_POWERDOWN_CTRL_REG,
 			SP_REGISTER_PD | SP_TOTAL_PD);
-- 
2.17.2 (Apple Git-113)