[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>
diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c
index fad387f..449b250 100644
--- a/drivers/usb/misc/auerswald.c
+++ b/drivers/usb/misc/auerswald.c
@@ -767,7 +767,7 @@
 	        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 @@
                 }
         }
         if (!cp->intbufp) {
-                cp->intbufp = (char *) kmalloc (irqsize, GFP_KERNEL);
+                cp->intbufp = kmalloc (irqsize, GFP_KERNEL);
                 if (!cp->intbufp) {
                         ret = -ENOMEM;
                         goto intoend;
diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c
index b9d6607..384fa37 100644
--- a/drivers/usb/misc/rio500.c
+++ b/drivers/usb/misc/rio500.c
@@ -465,14 +465,14 @@
 
 	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);