diff options
| author | Pan Bian <bianpan2016@163.com> | 2017-04-23 20:29:24 +0800 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2017-04-27 11:54:47 +0100 |
| commit | db43b8d04d7a9fa0ac18db6de2c4741dcefbcc0b (patch) | |
| tree | 504f821a38accd78c5853d95ecde08e432e740c2 /drivers/mfd/intel_soc_pmic_core.c | |
| parent | d1f4f01a994b13e7cc3d682b816de7fc7e3463d9 (diff) | |
mfd: intel_soc_pmic_core: Fix unchecked return value
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>
Diffstat (limited to 'drivers/mfd/intel_soc_pmic_core.c')
| -rw-r--r-- | drivers/mfd/intel_soc_pmic_core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mfd/intel_soc_pmic_core.c b/drivers/mfd/intel_soc_pmic_core.c index 3b5583586662..13737be6df35 100644 --- a/drivers/mfd/intel_soc_pmic_core.c +++ b/drivers/mfd/intel_soc_pmic_core.c @@ -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, |