Messages in this thread Patch in this message | | | From | Christophe JAILLET <> | Subject | [PATCH] i2c: xlr: Fix a resource leak in the error handling path of 'xlr_i2c_probe()' | Date | Thu, 19 Aug 2021 22:48:08 +0200 |
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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: 75d31c2372e4 ("i2c: xlr: add support for Sigma Designs controller variant") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- drivers/i2c/busses/i2c-xlr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-xlr.c b/drivers/i2c/busses/i2c-xlr.c index 126d1393e548..9ce20652d494 100644 --- a/drivers/i2c/busses/i2c-xlr.c +++ b/drivers/i2c/busses/i2c-xlr.c @@ -431,11 +431,15 @@ static int xlr_i2c_probe(struct platform_device *pdev) i2c_set_adapdata(&priv->adap, priv); ret = i2c_add_numbered_adapter(&priv->adap); if (ret < 0) - return ret; + goto err_unprepare_clk; platform_set_drvdata(pdev, priv); dev_info(&priv->adap.dev, "Added I2C Bus.\n"); return 0; + +err_unprepare_clk: + clk_unprepare(clk); + return ret; } static int xlr_i2c_remove(struct platform_device *pdev) -- 2.30.2
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