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i2c: xlr: Fix a resource leak in the error handling path of 'xlr_i2c_probe()'

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[ Upstream commit 7f98960c04 ]

A successful 'clk_prepare()' call should be balanced by a corresponding
'clk_unprepare()' call in the error handling path of the probe, as already
done in the remove function.

More specifically, 'clk_prepare_enable()' is used, but 'clk_disable()' is
also already called. So just the unprepare step has still to be done.

Update the error handling path accordingly.

Fixes: 75d31c2372 ("i2c: xlr: add support for Sigma Designs controller variant")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe JAILLET 2021-08-19 22:48:08 +02:00 committed by Greg Kroah-Hartman
parent 5b12e19315
commit 01e189372d
1 changed files with 5 additions and 1 deletions
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6
drivers/i2c/busses/i2c-xlr.c
View file

@ -431,11 +431,15 @@ static int xlr_i2c_probe(struct platform_device *pdev)
i2c_set_adapdata(&priv->adap, priv); i2c_set_adapdata(&priv->adap, priv);
ret = i2c_add_numbered_adapter(&priv->adap); ret = i2c_add_numbered_adapter(&priv->adap);
if (ret < 0) if (ret < 0)
return ret; goto err_unprepare_clk;
platform_set_drvdata(pdev, priv); platform_set_drvdata(pdev, priv);
dev_info(&priv->adap.dev, "Added I2C Bus.\n"); dev_info(&priv->adap.dev, "Added I2C Bus.\n");
return 0; return 0;
err_unprepare_clk:
clk_unprepare(clk);
return ret;
} }
static int xlr_i2c_remove(struct platform_device *pdev) static int xlr_i2c_remove(struct platform_device *pdev)