[Bluetooth]: Fix sparse warnings (__nocast type)

This patch fixes the sparse warnings "implicit cast to nocast type"
for the priority or gfp_mask parameters of the memory allocations.

Signed-off-by: Victor Fusco <victor@cetuc.puc-rio.br>
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
index 3768823..ffea9d5 100644
--- a/include/net/bluetooth/rfcomm.h
+++ b/include/net/bluetooth/rfcomm.h
@@ -230,7 +230,7 @@
 			u8 xon_char, u8 xoff_char, u16 param_mask);
 
 /* ---- RFCOMM DLCs (channels) ---- */
-struct rfcomm_dlc *rfcomm_dlc_alloc(int prio);
+struct rfcomm_dlc *rfcomm_dlc_alloc(unsigned int __nocast prio);
 void rfcomm_dlc_free(struct rfcomm_dlc *d);
 int  rfcomm_dlc_open(struct rfcomm_dlc *d, bdaddr_t *src, bdaddr_t *dst, u8 channel);
 int  rfcomm_dlc_close(struct rfcomm_dlc *d, int reason);