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authorYang Yingliang <yangyingliang@huawei.com>2022-05-14 04:31:47 +0200
committerWolfram Sang <wsa@kernel.org>2022-05-21 12:10:56 +0200
commita2537c98a8a3b57002e54a262d180b9490bc7190 (patch)
tree66ef0410f8a5e532f294e458e8b62dca07587c23 /drivers/i2c
parentLinux 5.18-rc7 (diff)
downloadlinux-a2537c98a8a3b57002e54a262d180b9490bc7190.tar.xz
linux-a2537c98a8a3b57002e54a262d180b9490bc7190.zip
i2c: mt7621: fix missing clk_disable_unprepare() on error in mtk_i2c_probe()
Fix the missing clk_disable_unprepare() before return from mtk_i2c_probe() in the error handling case. Fixes: d04913ec5f89 ("i2c: mt7621: Add MediaTek MT7621/7628/7688 I2C driver") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: Stefan Roese <sr@denx.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-mt7621.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-mt7621.c b/drivers/i2c/busses/i2c-mt7621.c
index 45fe4a7fe0c0..901f0fb04fee 100644
--- a/drivers/i2c/busses/i2c-mt7621.c
+++ b/drivers/i2c/busses/i2c-mt7621.c
@@ -304,7 +304,8 @@ static int mtk_i2c_probe(struct platform_device *pdev)
if (i2c->bus_freq == 0) {
dev_warn(i2c->dev, "clock-frequency 0 not supported\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_disable_clk;
}
adap = &i2c->adap;
@@ -322,10 +323,15 @@ static int mtk_i2c_probe(struct platform_device *pdev)
ret = i2c_add_adapter(adap);
if (ret < 0)
- return ret;
+ goto err_disable_clk;
dev_info(&pdev->dev, "clock %u kHz\n", i2c->bus_freq / 1000);
+ return 0;
+
+err_disable_clk:
+ clk_disable_unprepare(i2c->clk);
+
return ret;
}