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regulator: qcom_rpm-regulator: add NULL check on of_match_device() return value

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Check return value from call to of_match_device()
in order to prevent a NULL pointer dereference.

In case of NULL print error message and return.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Gustavo A. R. Silva 2017-07-07 00:29:58 -05:00 committed by Mark Brown
parent 8d67f64f77
commit 2f2472baa6
1 changed files with 5 additions and 0 deletions
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5
drivers/regulator/qcom_rpm-regulator.c
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@ -959,6 +959,11 @@ static int rpm_reg_probe(struct platform_device *pdev)
}
match = of_match_device(rpm_of_match, &pdev->dev);
if (!match) {
dev_err(&pdev->dev, "failed to match device\n");
return -ENODEV;
}
for (reg = match->data; reg->name; reg++) {
vreg = devm_kmalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
if (!vreg)