diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c
index 7c5ac40f87251ccd0f27f7b307442566614dab2f..472bd0e6dd9d48a5a22db8ce9efc87968f506fb1 100644
--- a/drivers/net/wan/x25_asy.c
+++ b/drivers/net/wan/x25_asy.c
@@ -257,7 +257,7 @@ static void x25_asy_encaps(struct x25_asy *sl, unsigned char *icp, int len)
 static void x25_asy_write_wakeup(struct tty_struct *tty)
 {
 	int actual;
-	struct x25_asy *sl = (struct x25_asy *) tty->disc_data;
+	struct x25_asy *sl = tty->disc_data;
 
 	/* First make sure we're connected. */
 	if (!sl || sl->magic != X25_ASY_MAGIC || !netif_running(sl->dev))
@@ -523,7 +523,7 @@ static int x25_asy_close(struct net_device *dev)
 static void x25_asy_receive_buf(struct tty_struct *tty,
 				const unsigned char *cp, char *fp, int count)
 {
-	struct x25_asy *sl = (struct x25_asy *) tty->disc_data;
+	struct x25_asy *sl = tty->disc_data;
 
 	if (!sl || sl->magic != X25_ASY_MAGIC || !netif_running(sl->dev))
 		return;
@@ -551,7 +551,7 @@ static void x25_asy_receive_buf(struct tty_struct *tty,
 
 static int x25_asy_open_tty(struct tty_struct *tty)
 {
-	struct x25_asy *sl = (struct x25_asy *) tty->disc_data;
+	struct x25_asy *sl = tty->disc_data;
 	int err;
 
 	if (tty->ops->write == NULL)
@@ -592,7 +592,7 @@ static int x25_asy_open_tty(struct tty_struct *tty)
  */
 static void x25_asy_close_tty(struct tty_struct *tty)
 {
-	struct x25_asy *sl = (struct x25_asy *) tty->disc_data;
+	struct x25_asy *sl = tty->disc_data;
 
 	/* First make sure we're connected. */
 	if (!sl || sl->magic != X25_ASY_MAGIC)
@@ -692,7 +692,7 @@ static void x25_asy_unesc(struct x25_asy *sl, unsigned char s)
 static int x25_asy_ioctl(struct tty_struct *tty, struct file *file,
 			 unsigned int cmd,  unsigned long arg)
 {
-	struct x25_asy *sl = (struct x25_asy *) tty->disc_data;
+	struct x25_asy *sl = tty->disc_data;
 
 	/* First make sure we're connected. */
 	if (!sl || sl->magic != X25_ASY_MAGIC)
diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index f93caf4be3283521a0e7b0d766d00e2f92411e9e..692e6c5e009a8877628ecf4351f1f54fbbe9ca24 100644
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -1234,7 +1234,7 @@ static void ResetRadio(struct strip *strip_info)
 
 static void strip_write_some_more(struct tty_struct *tty)
 {
-	struct strip *strip_info = (struct strip *) tty->disc_data;
+	struct strip *strip_info = tty->disc_data;
 
 	/* First make sure we're connected. */
 	if (!strip_info || strip_info->magic != STRIP_MAGIC ||
@@ -2259,7 +2259,7 @@ static void process_message(struct strip *strip_info)
 static void strip_receive_buf(struct tty_struct *tty, const unsigned char *cp,
 		  char *fp, int count)
 {
-	struct strip *strip_info = (struct strip *) tty->disc_data;
+	struct strip *strip_info = tty->disc_data;
 	const unsigned char *end = cp + count;
 
 	if (!strip_info || strip_info->magic != STRIP_MAGIC
@@ -2594,7 +2594,7 @@ static struct strip *strip_alloc(void)
 
 static int strip_open(struct tty_struct *tty)
 {
-	struct strip *strip_info = (struct strip *) tty->disc_data;
+	struct strip *strip_info = tty->disc_data;
 
 	/*
 	 * First make sure we're not already connected.
@@ -2665,7 +2665,7 @@ static int strip_open(struct tty_struct *tty)
 
 static void strip_close(struct tty_struct *tty)
 {
-	struct strip *strip_info = (struct strip *) tty->disc_data;
+	struct strip *strip_info = tty->disc_data;
 
 	/*
 	 * First make sure we're connected.
@@ -2691,7 +2691,7 @@ static void strip_close(struct tty_struct *tty)
 static int strip_ioctl(struct tty_struct *tty, struct file *file,
 		       unsigned int cmd, unsigned long arg)
 {
-	struct strip *strip_info = (struct strip *) tty->disc_data;
+	struct strip *strip_info = tty->disc_data;
 
 	/*
 	 * First make sure we're connected.