Revert Staging: SLICOSS: use gfp_kernel where possible

Revert commit 2bb34736

This commit has been reported to cause problems:
  Mar 24 11:50:31 linuxdev kernel: BUG: sleeping function called from invalid context at mm/slub.c:1599 Mar 24 11:50:31 linuxdev kernel: in_atomic(): 1, irqs_disabled(): 0, pid: 3251, name: avahi-daemon

Cc: Lior Dotan <liodot@gmail.com>
Cc: Christopher Harrer <charrer@alacritech.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/slicoss/slicoss.c

@@ -1267,7 +1267,7 @@ static int slic_mcast_add_list(struct adapter *adapter, char *address)
 	}
 
 	/* Doesn't already exist.  Allocate a structure to hold it */
-	mcaddr = kmalloc(sizeof(struct mcast_address), GFP_KERNEL);
+	mcaddr = kmalloc(sizeof(struct mcast_address), GFP_ATOMIC);
 	if (mcaddr == NULL)
 		return 1;
 
@@ -2291,7 +2291,7 @@ static u32 slic_card_locate(struct adapter *adapter)
 	}
 	if (!physcard) {
 		/* no structure allocated for this physical card yet */
-		physcard = kzalloc(sizeof(struct physcard), GFP_KERNEL);
+		physcard = kzalloc(sizeof(struct physcard), GFP_ATOMIC);
 		ASSERT(physcard);
 
 		physcard->next = slic_global.phys_card;