HID: tiny patch to remove a kmalloc cast

Remove unnecessary cast.

Signed-off-by: Ahmed Darwish <[e-mail]>
Signed-off-by: Jiri Kosina <[e-mail]>

drivers/hid/hid-core.c

···
 	for (i = 0; i < HID_REPORT_TYPES; i++)
 		INIT_LIST_HEAD(&device->report_enum[i].report_list);
 
-	if (!(device->rdesc = (__u8 *)kmalloc(size, GFP_KERNEL))) {
+	if (!(device->rdesc = kmalloc(size, GFP_KERNEL))) {
 		kfree(device->collection);
 		kfree(device);
 		return NULL;