[PATCH] turn many #if $undefined_string into #ifdef $undefined_string

turn many #if $undefined_string into #ifdef $undefined_string to fix some
warnings after -Wno-def was added to global CFLAGS

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/char/rio/riotable.c b/drivers/char/rio/riotable.c
index 8fb26ad..e45bc27 100644
--- a/drivers/char/rio/riotable.c
+++ b/drivers/char/rio/riotable.c
@@ -771,7 +771,7 @@
 	    if ((MapP->Flags & RTA16_SECOND_SLOT) == 0)
 	      CCOPY( MapP->Name, HostMapP->Name, MAX_NAME_LEN );
 	    HostMapP->Flags = SLOT_IN_USE | RTA_BOOTED;
-#if NEED_TO_FIX
+#ifdef NEED_TO_FIX
 	    RIO_SV_BROADCAST(p->RIOHosts[host].svFlags[MapP->ID-1]);
 #endif
 	    if (MapP->Flags & RTA16_SECOND_SLOT)