[PATCH v5 5/9] phy: phy-can-transceiver: Propagate return value of gpiod_set_value_cansleep

[Peng Fan]

gpiod_set_value_cansleep might return failure, propagate the return value
of gpiod_set_value_cansleep to parent.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 drivers/phy/phy-can-transceiver.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/drivers/phy/phy-can-transceiver.c b/drivers/phy/phy-can-transceiver.c
index b7d75a78d9242e2003660a87d2d4c9f784aea523..ccb29e1dfe0d07005b4bcd8fefa2787292d921a0 100644
--- a/drivers/phy/phy-can-transceiver.c
+++ b/drivers/phy/phy-can-transceiver.c
@@ -46,23 +46,32 @@ static int can_transceiver_phy_power_on(struct phy *phy)
 			return ret;
 		}
 	}
-	gpiod_set_value_cansleep(can_transceiver_phy->standby_gpio, 0);
-	gpiod_set_value_cansleep(can_transceiver_phy->enable_gpio, 1);
 
-	return 0;
+	ret = gpiod_set_value_cansleep(can_transceiver_phy->standby_gpio, 0);
+	if (ret)
+		return ret;
+
+	return gpiod_set_value_cansleep(can_transceiver_phy->enable_gpio, 1);
 }
 
 /* Power off function */
 static int can_transceiver_phy_power_off(struct phy *phy)
 {
 	struct can_transceiver_phy *can_transceiver_phy = phy_get_drvdata(phy);
+	int ret;
+
+	ret = gpiod_set_value_cansleep(can_transceiver_phy->standby_gpio, 1);
+	if (ret)
+		return ret;
+
+	ret = gpiod_set_value_cansleep(can_transceiver_phy->enable_gpio, 0);
+	if (ret)
+		return ret;
 
-	gpiod_set_value_cansleep(can_transceiver_phy->standby_gpio, 1);
-	gpiod_set_value_cansleep(can_transceiver_phy->enable_gpio, 0);
 	if (can_transceiver_phy->priv->mux_state)
-		mux_state_deselect(can_transceiver_phy->priv->mux_state);
+		ret = mux_state_deselect(can_transceiver_phy->priv->mux_state);
 
-	return 0;
+	return ret;
 }
 
 static const struct phy_ops can_transceiver_phy_ops = {

-- 
2.37.1