Messages in this thread Patch in this message | | | From | Kangjie Lu <> | Subject | [PATCH v2] gpu: anx7808: fix a missing check in anx78xx_poweron | Date | Mon, 24 Dec 2018 23:02:34 -0600 |
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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@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)
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