[PATCH] USB: Remove unneeded kmalloc() return value casts

Remove kmalloc() return value casts that we don't need from
drivers/usb/*

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/media/usbvideo.c

@@ -725,7 +725,7 @@ int usbvideo_register(
 		/* Allocate user_data separately because of kmalloc's limits */
 		if (num_extra > 0) {
 			up->user_size = num_cams * num_extra;
-			up->user_data = (char *) kmalloc(up->user_size, GFP_KERNEL);
+			up->user_data = kmalloc(up->user_size, GFP_KERNEL);
 			if (up->user_data == NULL) {
 				err("%s: Failed to allocate user_data (%d. bytes)",
 				    __FUNCTION__, up->user_size);

drivers/usb/media/w9968cf.c

@@ -3554,7 +3554,7 @@ w9968cf_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
 
 
 	/* Allocate 2 bytes of memory for camera control USB transfers */
-	if (!(cam->control_buffer = (u16*)kmalloc(2, GFP_KERNEL))) {
+	if (!(cam->control_buffer = kmalloc(2, GFP_KERNEL))) {
 		DBG(1,"Couldn't allocate memory for camera control transfers")
 		err = -ENOMEM;
 		goto fail;
@@ -3562,7 +3562,7 @@ w9968cf_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
 	memset(cam->control_buffer, 0, 2);
 
 	/* Allocate 8 bytes of memory for USB data transfers to the FSB */
-	if (!(cam->data_buffer = (u16*)kmalloc(8, GFP_KERNEL))) {
+	if (!(cam->data_buffer = kmalloc(8, GFP_KERNEL))) {
 		DBG(1, "Couldn't allocate memory for data "
 		       "transfers to the FSB")
 		err = -ENOMEM;

drivers/usb/misc/auerswald.c

@@ -767,7 +767,7 @@ static int auerbuf_setup (pauerbufctl_t bcp, unsigned int numElements, unsigned
 	        memset (bep, 0, sizeof (auerbuf_t));
                 bep->list = bcp;
                 INIT_LIST_HEAD (&bep->buff_list);
-                bep->bufp = (char *) kmalloc (bufsize, GFP_KERNEL);
+                bep->bufp = kmalloc (bufsize, GFP_KERNEL);
                 if (!bep->bufp)
 			goto bl_fail;
                 bep->dr = (struct usb_ctrlrequest *) kmalloc (sizeof (struct usb_ctrlrequest), GFP_KERNEL);
@@ -1123,7 +1123,7 @@ static int auerswald_int_open (pauerswald_t cp)
                 }
         }
         if (!cp->intbufp) {
-                cp->intbufp = (char *) kmalloc (irqsize, GFP_KERNEL);
+                cp->intbufp = kmalloc (irqsize, GFP_KERNEL);
                 if (!cp->intbufp) {
                         ret = -ENOMEM;
                         goto intoend;

drivers/usb/misc/rio500.c

@@ -465,14 +465,14 @@ static int probe_rio(struct usb_interface *intf,
 
 	rio->rio_dev = dev;
 
-	if (!(rio->obuf = (char *) kmalloc(OBUF_SIZE, GFP_KERNEL))) {
+	if (!(rio->obuf = kmalloc(OBUF_SIZE, GFP_KERNEL))) {
 		err("probe_rio: Not enough memory for the output buffer");
 		usb_deregister_dev(intf, &usb_rio_class);
 		return -ENOMEM;
 	}
 	dbg("probe_rio: obuf address:%p", rio->obuf);
 
-	if (!(rio->ibuf = (char *) kmalloc(IBUF_SIZE, GFP_KERNEL))) {
+	if (!(rio->ibuf = kmalloc(IBUF_SIZE, GFP_KERNEL))) {
 		err("probe_rio: Not enough memory for the input buffer");
 		usb_deregister_dev(intf, &usb_rio_class);
 		kfree(rio->obuf);