[PATCH 4.4 089/188] phy: ti: dm816x: Fix the error handling path in dm816x_usb_phy_probe()

Greg Kroah-Hartman
2021-07-19T15:00:44Z

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit f7eedcb8539ddcbb6fe7791f1b4ccf43f905c72f ]

Add an error handling path in the probe to release some resources, as
already done in the remove function.

Fixes: 609adde838f4 ("phy: Add a driver for dm816x USB PHY")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/ac5136881f6bdec50be19b3bf73b3bc1b15ef1f1.1622898974.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/phy/phy-dm816x-usb.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/phy/phy-dm816x-usb.c b/drivers/phy/phy-dm816x-usb.c
index b4bbef664d20..908b5ff0e888 100644
--- a/drivers/phy/phy-dm816x-usb.c
+++ b/drivers/phy/phy-dm816x-usb.c
@@ -246,19 +246,28 @@ static int dm816x_usb_phy_probe(struct platform_device *pdev)

pm_runtime_enable(phy->dev);
generic_phy = devm_phy_create(phy->dev, NULL, &ops);
- if (IS_ERR(generic_phy))
- return PTR_ERR(generic_phy);
+ if (IS_ERR(generic_phy)) {
+ error = PTR_ERR(generic_phy);
+ goto clk_unprepare;
+ }

phy_set_drvdata(generic_phy, phy);

phy_provider = devm_of_phy_provider_register(phy->dev,
of_phy_simple_xlate);
- if (IS_ERR(phy_provider))
- return PTR_ERR(phy_provider);
+ if (IS_ERR(phy_provider)) {
+ error = PTR_ERR(phy_provider);
+ goto clk_unprepare;
+ }

usb_add_phy_dev(&phy->phy);

return 0;
+
+clk_unprepare:
+ pm_runtime_disable(phy->dev);
+ clk_unprepare(phy->refclk);
+ return error;
}

static int dm816x_usb_phy_remove(struct platform_device *pdev)
--
2.30.2