diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c
index cb32e2b506b71956e08fd1d947d0584d427f4034..21bea52d4365797a602f27e2f2f7c514540c0120 100644
--- a/drivers/input/keyboard/lm8323.c
+++ b/drivers/input/keyboard/lm8323.c
@@ -616,6 +616,8 @@ static ssize_t lm8323_set_disable(struct device *dev,
 	unsigned int i;
 
 	ret = kstrtouint(buf, 10, &i);
+	if (ret)
+		return ret;
 
 	mutex_lock(&lm->lock);
 	lm->kp_enabled = !i;