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regulator: cros-ec-regulator: Add NULL test for devm_kmemdup call 

Fix possible NULL pointer dereference.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20200802032509.305425-1-axel.lin@ingics.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Axel Lin 2020-08-02 11:25:09 +08:00 committed by Mark Brown
parent bcb3b2a763
commit ce41090057
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1 changed files with 3 additions and 0 deletions
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drivers/regulator/cros-ec-regulator.c
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@ -170,6 +170,9 @@ static int cros_ec_regulator_init_info(struct device *dev,
data->voltages_mV = data->voltages_mV =
devm_kmemdup(dev, resp.voltages_mv, devm_kmemdup(dev, resp.voltages_mv,
sizeof(u16) * data->num_voltages, GFP_KERNEL); sizeof(u16) * data->num_voltages, GFP_KERNEL);
if (!data->voltages_mV)
return -ENOMEM;
data->desc.n_voltages = data->num_voltages; data->desc.n_voltages = data->num_voltages;
/* Make sure the returned name is always a valid string */ /* Make sure the returned name is always a valid string */