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mfd: intel_soc_pmic_core: Fix unchecked return value

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unction devm_regmap_init_i2c() returns an ERR_PTR on errors, and its
return value should be checked before it is dereferenced. However, in
function intel_soc_pmic_i2c_probe(), the return value of function
devm_regmap_init_i2c() is used without validation. This patch fixes it.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Pan Bian 2017-04-23 20:29:24 +08:00 committed by Lee Jones
parent d1f4f01a99
commit db43b8d04d
1 changed files with 3 additions and 0 deletions
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drivers/mfd/intel_soc_pmic_core.c
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@ -66,6 +66,9 @@ static int intel_soc_pmic_i2c_probe(struct i2c_client *i2c,
dev_set_drvdata(dev, pmic);
pmic->regmap = devm_regmap_init_i2c(i2c, config->regmap_config);
if (IS_ERR(pmic->regmap))
return PTR_ERR(pmic->regmap);
pmic->irq = i2c->irq;
ret = regmap_add_irq_chip(pmic->regmap, pmic->irq,