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i2c: iop3xx: Fix memory leak in probe error path 

When handling devm_gpiod_get_optional() errors, free the memory already
allocated.  This fixes Smatch warnings:

    drivers/i2c/busses/i2c-iop3xx.c:437 iop3xx_i2c_probe() warn: possible memory leak of 'new_adapter'
    drivers/i2c/busses/i2c-iop3xx.c:442 iop3xx_i2c_probe() warn: possible memory leak of 'new_adapter'

Fixes: fdb7e884ad ("i2c: iop: Use GPIO descriptors")
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
alistair/sunxi64-5.5-dsi
Krzysztof Kozlowski 2020-01-13 18:29:54 +01:00 committed by Wolfram Sang
parent 24a49678f5
commit e64175776d
1 changed files with 8 additions and 4 deletions
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12
drivers/i2c/busses/i2c-iop3xx.c
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@ -433,13 +433,17 @@ iop3xx_i2c_probe(struct platform_device *pdev)
adapter_data->gpio_scl = devm_gpiod_get_optional(&pdev->dev,
"scl",
GPIOD_ASIS);
if (IS_ERR(adapter_data->gpio_scl))
return PTR_ERR(adapter_data->gpio_scl);
if (IS_ERR(adapter_data->gpio_scl)) {
ret = PTR_ERR(adapter_data->gpio_scl);
goto free_both;
}
adapter_data->gpio_sda = devm_gpiod_get_optional(&pdev->dev,
"sda",
GPIOD_ASIS);
if (IS_ERR(adapter_data->gpio_sda))
return PTR_ERR(adapter_data->gpio_sda);
if (IS_ERR(adapter_data->gpio_sda)) {
ret = PTR_ERR(adapter_data->gpio_sda);
goto free_both;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {