linux-kernel - [PATCH 5.7 298/477] usb: dwc3: meson-g12a: fix error path when fetching the reset line fails

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Message-Id: <20200623195421.636373360@linuxfoundation.org>
Date:   Tue, 23 Jun 2020 21:54:55 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Yue Wang <yue.wang@...ogic.com>,
        Hanjie Lin <hanjie.lin@...ogic.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.7 298/477] usb: dwc3: meson-g12a: fix error path when fetching the reset line fails

From: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

[ Upstream commit be8c1001a7e681e8813882a42ed51c8dbffd8800 ]

Disable and unprepare the clocks when devm_reset_control_get_shared()
fails. This fixes the error path as this must disable the clocks which
were previously enabled.

Fixes: 1e355f21d3fb96 ("usb: dwc3: Add Amlogic A1 DWC3 glue")
Cc: Yue Wang <yue.wang@...ogic.com>
Cc: Hanjie Lin <hanjie.lin@...ogic.com>
Acked-by: Neil Armstrong <narmstrong@...libre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Link: https://lore.kernel.org/r/20200526202943.715220-2-martin.blumenstingl@googlemail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/usb/dwc3/dwc3-meson-g12a.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c
index 2d257bdfe8485..eabb3bb6fcaa1 100644
--- a/drivers/usb/dwc3/dwc3-meson-g12a.c
+++ b/drivers/usb/dwc3/dwc3-meson-g12a.c
@@ -505,7 +505,7 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->reset)) {
 		ret = PTR_ERR(priv->reset);
 		dev_err(dev, "failed to get device reset, err=%d\n", ret);
-		return ret;
+		goto err_disable_clks;
 	}
 
 	ret = reset_control_reset(priv->reset);
-- 
2.25.1