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authorGustavo A. R. Silva <garsilva@embeddedor.com>2017-07-07 08:36:10 +0300
committerMark Brown <broonie@kernel.org>2017-07-07 15:42:07 +0300
commite3b53b8a465133ce57f9722aab5617b8e0f9657f (patch)
tree7ca9388b45bbaf11f0313dc16ee28120c524888f /drivers/regulator/qcom_smd-regulator.c
parent2f2472baa66ef9a6aa25124cb07679bbe613ceff (diff)
downloadlinux-e3b53b8a465133ce57f9722aab5617b8e0f9657f.tar.xz
regulator: qcom_smd: add NULL check on of_match_device() return value
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>
Diffstat (limited to 'drivers/regulator/qcom_smd-regulator.c')
-rw-r--r--drivers/regulator/qcom_smd-regulator.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
index f35994a2a5be..940fe1b78411 100644
--- a/drivers/regulator/qcom_smd-regulator.c
+++ b/drivers/regulator/qcom_smd-regulator.c
@@ -570,6 +570,11 @@ 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_kzalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
if (!vreg)