diff --git a/drivers/staging/batman-adv/bat_debugfs.c b/drivers/staging/batman-adv/bat_debugfs.c
index 8e8eef0e588e..507da68054c7 100644
--- a/drivers/staging/batman-adv/bat_debugfs.c
+++ b/drivers/staging/batman-adv/bat_debugfs.c
@@ -104,7 +104,7 @@ static int log_release(struct inode *inode, struct file *file)
 static ssize_t log_read(struct file *file, char __user *buf,
 			size_t count, loff_t *ppos)
 {
-	struct bat_priv *bat_priv = (struct bat_priv *)file->private_data;
+	struct bat_priv *bat_priv = file->private_data;
 	struct debug_log *debug_log = bat_priv->debug_log;
 	int error, i = 0;
 	char c;
@@ -158,7 +158,7 @@ static ssize_t log_read(struct file *file, char __user *buf,
 
 static unsigned int log_poll(struct file *file, poll_table *wait)
 {
-	struct bat_priv *bat_priv = (struct bat_priv *)file->private_data;
+	struct bat_priv *bat_priv = file->private_data;
 	struct debug_log *debug_log = bat_priv->debug_log;
 
 	poll_wait(file, &debug_log->queue_wait, wait);
diff --git a/drivers/staging/batman-adv/icmp_socket.c b/drivers/staging/batman-adv/icmp_socket.c
index 532f246de43d..fc3d32c12729 100644
--- a/drivers/staging/batman-adv/icmp_socket.c
+++ b/drivers/staging/batman-adv/icmp_socket.c
@@ -78,8 +78,7 @@ static int bat_socket_open(struct inode *inode, struct file *file)
 
 static int bat_socket_release(struct inode *inode, struct file *file)
 {
-	struct socket_client *socket_client =
-		(struct socket_client *)file->private_data;
+	struct socket_client *socket_client = file->private_data;
 	struct socket_packet *socket_packet;
 	struct list_head *list_pos, *list_pos_tmp;
 	unsigned long flags;
@@ -107,8 +106,7 @@ static int bat_socket_release(struct inode *inode, struct file *file)
 static ssize_t bat_socket_read(struct file *file, char __user *buf,
 			       size_t count, loff_t *ppos)
 {
-	struct socket_client *socket_client =
-		(struct socket_client *)file->private_data;
+	struct socket_client *socket_client = file->private_data;
 	struct socket_packet *socket_packet;
 	size_t packet_len;
 	int error;
@@ -155,8 +153,7 @@ static ssize_t bat_socket_write(struct file *file, const char __user *buff,
 {
 	/* FIXME: each orig_node->batman_if will be attached to a softif */
 	struct bat_priv *bat_priv = netdev_priv(soft_device);
-	struct socket_client *socket_client =
-		(struct socket_client *)file->private_data;
+	struct socket_client *socket_client = file->private_data;
 	struct icmp_packet_rr icmp_packet;
 	struct orig_node *orig_node;
 	struct batman_if *batman_if;
@@ -247,8 +244,7 @@ out:
 
 static unsigned int bat_socket_poll(struct file *file, poll_table *wait)
 {
-	struct socket_client *socket_client =
-		(struct socket_client *)file->private_data;
+	struct socket_client *socket_client = file->private_data;
 
 	poll_wait(file, &socket_client->queue_wait, wait);
 
diff --git a/drivers/staging/cx25821/cx25821-alsa.c b/drivers/staging/cx25821/cx25821-alsa.c
index 1798975a69bd..ce2c6f1323e1 100644
--- a/drivers/staging/cx25821/cx25821-alsa.c
+++ b/drivers/staging/cx25821/cx25821-alsa.c
@@ -699,7 +699,7 @@ static int cx25821_audio_initdev(struct cx25821_dev *dev)
 
 	/* Card "creation" */
 	card->private_free = snd_cx25821_dev_free;
-	chip = (struct cx25821_audio_dev *) card->private_data;
+	chip = card->private_data;
 	spin_lock_init(&chip->reg_lock);
 
 	chip->dev = dev;
diff --git a/drivers/staging/easycap/easycap_ioctl.c b/drivers/staging/easycap/easycap_ioctl.c
index 7227d735f5e2..276b63dfe27e 100644
--- a/drivers/staging/easycap/easycap_ioctl.c
+++ b/drivers/staging/easycap/easycap_ioctl.c
@@ -791,7 +791,7 @@ static struct easycap *peasycap;
 static struct usb_device *p;
 static __u32 isequence;
 
-peasycap = (struct easycap *)file->private_data;
+peasycap = file->private_data;
 if (NULL == peasycap) {
 	SAY("ERROR:  peasycap is NULL\n");
 	return -1;
@@ -1973,7 +1973,7 @@ int easysnd_ioctl(struct inode *inode, struct file *file, \
 struct easycap *peasycap;
 struct usb_device *p;
 
-peasycap = (struct easycap *)file->private_data;
+peasycap = file->private_data;
 if (NULL == peasycap) {
 	SAY("ERROR:  peasycap is NULL.\n");
 	return -1;
diff --git a/drivers/staging/easycap/easycap_main.c b/drivers/staging/easycap/easycap_main.c
index f7a65afb6cd8..09c194ce10a3 100644
--- a/drivers/staging/easycap/easycap_main.c
+++ b/drivers/staging/easycap/easycap_main.c
@@ -527,7 +527,7 @@ struct easycap *peasycap;
 
 JOT(4, "\n");
 
-peasycap = (struct easycap *)file->private_data;
+peasycap = file->private_data;
 if (NULL == peasycap) {
 	SAY("ERROR:  peasycap is NULL.\n");
 	SAY("ending unsuccessfully\n");
@@ -819,7 +819,7 @@ if (NULL == ((struct file *)file)) {
 	SAY("ERROR:  file pointer is NULL\n");
 	return -EFAULT;
 }
-peasycap = (struct easycap *)file->private_data;
+peasycap = file->private_data;
 if (NULL == peasycap) {
 	SAY("ERROR:  peasycap is NULL\n");
 	return -EFAULT;
diff --git a/drivers/staging/easycap/easycap_sound.c b/drivers/staging/easycap/easycap_sound.c
index 37eaf426533c..63562bda738e 100644
--- a/drivers/staging/easycap/easycap_sound.c
+++ b/drivers/staging/easycap/easycap_sound.c
@@ -630,7 +630,7 @@ struct easycap *peasycap;
 
 JOT(4, "begins\n");
 
-peasycap = (struct easycap *)file->private_data;
+peasycap = file->private_data;
 if (NULL == peasycap) {
 	SAY("ERROR:  peasycap is NULL.\n");
 	return -EFAULT;