diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c
index 2a7a85a6dc360e9615725fc7be5c25b0f845799c..da1b1f9488afc335c60b1833ee3fb7d89d3b832d 100644
--- a/drivers/hwmon/fschmd.c
+++ b/drivers/hwmon/fschmd.c
@@ -819,7 +819,7 @@ static int watchdog_release(struct inode *inode, struct file *filp)
 static ssize_t watchdog_write(struct file *filp, const char __user *buf,
 	size_t count, loff_t *offset)
 {
-	size_t ret;
+	int ret;
 	struct fschmd_data *data = filp->private_data;
 
 	if (count) {