staging/lustre/libcfs: Remove useless returns in void functions

Return at the end of a void function does not serve any particular
purpose and makes checkpatch unhappy, so eliminate them.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/libcfs/linux/linux-cpu.c

@@ -354,8 +354,6 @@ cfs_cpt_unset_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu)
 
 	if (i >= nr_cpu_ids)
 		node_clear(node, *cptab->ctb_nodemask);
-
-	return;
 }
 EXPORT_SYMBOL(cfs_cpt_unset_cpu);
 

drivers/staging/lustre/lustre/libcfs/linux/linux-crypto.c

@@ -286,6 +286,4 @@ void cfs_crypto_unregister(void)
 {
 	if (adler32 == 0)
 		cfs_crypto_adler32_unregister();
-
-	return;
 }

drivers/staging/lustre/lustre/libcfs/linux/linux-tracefile.c

@@ -198,7 +198,6 @@ cfs_set_ptldebug_header(struct ptldebug_header *header,
 	header->ph_pid = current->pid;
 	header->ph_line_num = msgdata->msg_line;
 	header->ph_extern_pid = 0;
-	return;
 }
 
 static char *
@@ -252,7 +251,6 @@ void cfs_print_to_console(struct ptldebug_header *hdr, int mask,
 		       hdr->ph_pid, hdr->ph_extern_pid, file, hdr->ph_line_num,
 		       fn, len, buf);
 	}
-	return;
 }
 
 int cfs_trace_max_debug_mb(void)

drivers/staging/lustre/lustre/libcfs/workitem.c

@@ -131,8 +131,6 @@ cfs_wi_exit(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 
 	wi->wi_scheduled = 1; /* LBUG future schedule attempts */
 	spin_unlock(&sched->ws_lock);
-
-	return;
 }
 EXPORT_SYMBOL(cfs_wi_exit);
 
@@ -203,7 +201,6 @@ cfs_wi_schedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
 
 	LASSERT(!list_empty(&wi->wi_list));
 	spin_unlock(&sched->ws_lock);
-	return;
 }
 EXPORT_SYMBOL(cfs_wi_schedule);