[PATCH] regulator: cros-ec-regulator: Add NULL test for devm_kmemdup call

[Axel Lin]

Fix possible NULL pointer dereference.

Signed-off-by: Axel Lin <axel....@ingics.com>
---
 drivers/regulator/cros-ec-regulator.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/regulator/cros-ec-regulator.c 
b/drivers/regulator/cros-ec-regulator.c
index 3117bbd2826b..eb3fc1db4edc 100644
--- a/drivers/regulator/cros-ec-regulator.c
+++ b/drivers/regulator/cros-ec-regulator.c
@@ -170,6 +170,9 @@ static int cros_ec_regulator_init_info(struct device *dev,
        data->voltages_mV =
                devm_kmemdup(dev, resp.voltages_mv,
                             sizeof(u16) * data->num_voltages, GFP_KERNEL);
+       if (!data->voltages_mV)
+               return -ENOMEM;
+
        data->desc.n_voltages = data->num_voltages;
 
        /* Make sure the returned name is always a valid string */
-- 
2.25.1