diff --git a/[refs] b/[refs]
index f06eec246c75..ddba7f268f0d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bb950a169d98ac9a2b8a899f95ed5d784c14f3cc
+refs/heads/master: c0e6e7c1b2409fd4968b256ae1d979e6df14b3f1
diff --git a/trunk/drivers/staging/line6/variax.c b/trunk/drivers/staging/line6/variax.c
index f9d96984733a..48d834b0fa1b 100644
--- a/trunk/drivers/staging/line6/variax.c
+++ b/trunk/drivers/staging/line6/variax.c
@@ -184,7 +184,12 @@ static ssize_t variax_set_volume(struct device *dev,
 				 const char *buf, size_t count)
 {
 	struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
-	int value = simple_strtoul(buf, NULL, 10);
+	unsigned long value;
+	int ret;
+
+	ret = strict_strtoul(buf, 10, &value);
+	if (ret)
+		return ret;
 
 	if (line6_transmit_parameter(&variax->line6, VARIAXMIDI_volume,
 				     value) == 0)
@@ -211,7 +216,12 @@ static ssize_t variax_set_model(struct device *dev,
 				const char *buf, size_t count)
 {
 	struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
-	int value = simple_strtoul(buf, NULL, 10);
+	unsigned long value;
+	int ret;
+
+	ret = strict_strtoul(buf, 10, &value);
+	if (ret)
+		return ret;
 
 	if (line6_send_program(&variax->line6, value) == 0)
 		variax->model = value;
@@ -237,8 +247,14 @@ static ssize_t variax_set_active(struct device *dev,
 				 const char *buf, size_t count)
 {
 	struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
-	int value = simple_strtoul(buf, NULL, 10) ? 1 : 0;
-	variax->buffer_activate[VARIAX_OFFSET_ACTIVATE] = value;
+	unsigned long value;
+	int ret;
+
+	ret = strict_strtoul(buf, 10, &value);
+	if (ret)
+		return ret;
+
+	variax->buffer_activate[VARIAX_OFFSET_ACTIVATE] = value ? 1: 0;
 	line6_send_raw_message_async(&variax->line6, variax->buffer_activate,
 				     sizeof(variax_activate));
 	return count;
@@ -262,7 +278,12 @@ static ssize_t variax_set_tone(struct device *dev,
 			       const char *buf, size_t count)
 {
 	struct usb_line6_variax *variax = usb_get_intfdata(to_usb_interface(dev));
-	int value = simple_strtoul(buf, NULL, 10);
+	unsigned long value;
+	int ret;
+
+	ret = strict_strtoul(buf, 10, &value);
+	if (ret)
+		return ret;
 
 	if (line6_transmit_parameter(&variax->line6, VARIAXMIDI_tone,
 				     value) == 0)