diff --git a/drivers/staging/gdm724x/gdm_mux.c b/drivers/staging/gdm724x/gdm_mux.c
index 0678f344fafb..9b12619671a1 100644
--- a/drivers/staging/gdm724x/gdm_mux.c
+++ b/drivers/staging/gdm724x/gdm_mux.c
@@ -16,7 +16,7 @@
 
 #include "gdm_mux.h"
 
-static u16 packet_type[TTY_MAX_COUNT] = {0xF011, 0xF010};
+static u16 packet_type_for_tty_index[TTY_MAX_COUNT] = {0xF011, 0xF010};
 
 #define USB_DEVICE_CDC_DATA(vid, pid) \
 	.match_flags = \
@@ -38,12 +38,12 @@ static const struct usb_device_id id_table[] = {
 
 MODULE_DEVICE_TABLE(usb, id_table);
 
-static int packet_type_to_index(u16 packetType)
+static int packet_type_to_tty_index(u16 packet_type)
 {
 	int i;
 
 	for (i = 0; i < TTY_MAX_COUNT; i++) {
-		if (packet_type[i] == packetType)
+		if (packet_type_for_tty_index[i] == packet_type)
 			return i;
 	}
 
@@ -170,7 +170,7 @@ static int up_to_host(struct mux_rx *r)
 			break;
 		}
 
-		index = packet_type_to_index(packet_type);
+		index = packet_type_to_tty_index(packet_type);
 		if (index < 0) {
 			pr_err("invalid index %d\n", index);
 			break;
@@ -372,7 +372,7 @@ static int gdm_mux_send(void *priv_dev, void *data, int len, int tty_index,
 	mux_header->start_flag = __cpu_to_le32(START_FLAG);
 	mux_header->seq_num = __cpu_to_le32(seq_num++);
 	mux_header->payload_size = __cpu_to_le32((u32)len);
-	mux_header->packet_type = __cpu_to_le16(packet_type[tty_index]);
+	mux_header->packet_type = __cpu_to_le16(packet_type_for_tty_index[tty_index]);
 
 	memcpy(t->buf + MUX_HEADER_SIZE, data, len);
 	memset(t->buf + MUX_HEADER_SIZE + len, 0,