X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fusb%2Fgadget%2Ff_hid.c;h=111b85ca7ac0971d8edc029aa8e5e5d53cac1656;hb=6396fc3b3ff3f6b942992b653a62df11dcef9bea;hp=1e00ff9866af83a233df62d917729889ec840a01;hpb=7cc88fdcff3cc7f0d5d2384ffd7f6d4ce9a745f1;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/usb/gadget/f_hid.c b/drivers/usb/gadget/f_hid.c
index 1e00ff9866af..111b85ca7ac0 100644
--- a/drivers/usb/gadget/f_hid.c
+++ b/drivers/usb/gadget/f_hid.c
@@ -142,7 +142,7 @@ static struct usb_descriptor_header *hidg_fs_descriptors[] = {
 static ssize_t f_hidg_read(struct file *file, char __user *buffer,
 			size_t count, loff_t *ptr)
 {
-	struct f_hidg	*hidg     = (struct f_hidg *)file->private_data;
+	struct f_hidg	*hidg     = file->private_data;
 	char		*tmp_buff = NULL;
 	unsigned long	flags;
 
@@ -200,7 +200,7 @@ static void f_hidg_req_complete(struct usb_ep *ep, struct usb_request *req)
 static ssize_t f_hidg_write(struct file *file, const char __user *buffer,
 			    size_t count, loff_t *offp)
 {
-	struct f_hidg *hidg  = (struct f_hidg *)file->private_data;
+	struct f_hidg *hidg  = file->private_data;
 	ssize_t status = -ENOMEM;
 
 	if (!access_ok(VERIFY_READ, buffer, count))
@@ -257,7 +257,7 @@ static ssize_t f_hidg_write(struct file *file, const char __user *buffer,
 
 static unsigned int f_hidg_poll(struct file *file, poll_table *wait)
 {
-	struct f_hidg	*hidg  = (struct f_hidg *)file->private_data;
+	struct f_hidg	*hidg  = file->private_data;
 	unsigned int	ret = 0;
 
 	poll_wait(file, &hidg->read_queue, wait);
@@ -318,8 +318,6 @@ static void hidg_set_report_complete(struct usb_ep *ep, struct usb_request *req)
 	spin_unlock(&hidg->spinlock);
 
 	wake_up(&hidg->read_queue);
-
-	return;
 }
 
 static int hidg_setup(struct usb_function *f,
@@ -413,8 +411,6 @@ static void hidg_disable(struct usb_function *f)
 
 	usb_ep_disable(hidg->in_ep);
 	hidg->in_ep->driver_data = NULL;
-
-	return;
 }
 
 static int hidg_set_alt(struct usb_function *f, unsigned intf, unsigned alt)