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Diffstat (limited to 'drivers/hwmon/ina3221.c')
-rw-r--r--drivers/hwmon/ina3221.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/hwmon/ina3221.c b/drivers/hwmon/ina3221.c
index c3a497aed345..4f3ed24efe8e 100644
--- a/drivers/hwmon/ina3221.c
+++ b/drivers/hwmon/ina3221.c
@@ -536,8 +536,14 @@ static int ina3221_probe_child_from_dt(struct device *dev,
of_property_read_string(child, "label", &input->label);
/* Overwrite default shunt resistor value optionally */
- if (!of_property_read_u32(child, "shunt-resistor-micro-ohms", &val))
+ if (!of_property_read_u32(child, "shunt-resistor-micro-ohms", &val)) {
+ if (val < 1 || val > INT_MAX) {
+ dev_err(dev, "invalid shunt resistor value %u of %s\n",
+ val, child->name);
+ return -EINVAL;
+ }
input->shunt_resistor = val;
+ }
return 0;
}