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phy: sunplus: fix error handling in sp_uphy_init()

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Fix the error paths of sp_uphy_init() to undo exactly what each stage
did: return directly if clk_prepare_enable() fails, release only the clock
if reset_control_deassert() fails, and jump to err_reset if
update_disc_vol() fails so the clock and reset are not leaked.

Fixes: 99d9ccd973 ("phy: usb: Add USB2.0 phy driver for Sunplus SP7021")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patch.msgid.link/20260803-sunplus-usb3-v1-1-5a562524c869@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Felix Gu
2026-08-03 23:15:17 +08:00
committed by Vinod Koul
parent b780b8929c
commit 8b2683bc4c
1 changed files with 3 additions and 3 deletions
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6
drivers/phy/sunplus/phy-sunplus-usb2.c
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@@ -116,11 +116,11 @@ static int sp_uphy_init(struct phy *phy)
ret = clk_prepare_enable(usbphy->phy_clk);
if (ret)
goto err_clk;
return ret;
ret = reset_control_deassert(usbphy->rstc);
if (ret)
goto err_reset;
goto err_clk;
/* Default value modification */
writel(HIGH_MASK_BITS | 0x4002, usbphy->moon4_regs + UPHY_CONTROL0);
@@ -129,7 +129,7 @@ static int sp_uphy_init(struct phy *phy)
/* disconnect voltage */
ret = update_disc_vol(usbphy);
if (ret < 0)
return ret;
goto err_reset;
/* board uphy 0 internal register modification for tid certification */
val = readl(usbphy->phy_regs + CONFIG9);