[PATCH v1 1/1] phy: rockchip: usbdp: fix uninitialized variable

From: Sebastian Reichel <sebastian.reichel@collabora.com>
To: Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	linux-rockchip@lists.infradead.org,
	linux-phy@lists.infradead.org
Cc: Sebastian Reichel <sebastian.reichel@collabora.com>,
	kernel@collabora.com, kernel test robot <lkp@intel.com>
Subject: [PATCH v1 1/1] phy: rockchip: usbdp: fix uninitialized variable
Date: Tue, 16 Apr 2024 16:51:23 +0200	[thread overview]
Message-ID: <20240416145233.94687-1-sebastian.reichel@collabora.com> (raw)

The ret variable may not be initialized in rk_udphy_usb3_phy_init(), if
the PHY is not using USB3 mode.

Since the DisplayPort part is handled separately and the PHY does not
support USB2 (which is routed to another PHY on Rockchip RK3588), the
right exit code for this case is 0. Thus let's initialize the variable
accordingly.

Fixes: 2f70bbddeb457 ("phy: rockchip: add usbdp combo phy driver")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404141048.qFAYDctQ-lkp@intel.com/
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/phy/rockchip/phy-rockchip-usbdp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/rockchip/phy-rockchip-usbdp.c b/drivers/phy/rockchip/phy-rockchip-usbdp.c
index 32f306459182..2c51e5c62d3e 100644
--- a/drivers/phy/rockchip/phy-rockchip-usbdp.c
+++ b/drivers/phy/rockchip/phy-rockchip-usbdp.c
@@ -1285,7 +1285,7 @@ static const struct phy_ops rk_udphy_dp_phy_ops = {
 static int rk_udphy_usb3_phy_init(struct phy *phy)
 {
 	struct rk_udphy *udphy = phy_get_drvdata(phy);
-	int ret;
+	int ret = 0;
 
 	mutex_lock(&udphy->mutex);
 	/* DP only or high-speed, disable U3 port */
-- 
2.43.0


-- 
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
