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-rw-r--r--drivers/hwmon/ltc2945.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/hwmon/ltc2945.c b/drivers/hwmon/ltc2945.c
index 1b92e4f6e..efabe514e 100644
--- a/drivers/hwmon/ltc2945.c
+++ b/drivers/hwmon/ltc2945.c
@@ -257,6 +257,8 @@ static ssize_t ltc2945_set_value(struct device *dev,
/* convert to register value, then clamp and write result */
regval = ltc2945_val_to_reg(dev, reg, val);
+ if (regval < 0)
+ return regval;
if (is_power_reg(reg)) {
regval = clamp_val(regval, 0, 0xffffff);
regbuf[0] = regval >> 16;