[PATCH] sparse cleanups: NULL pointers, C99 struct init.

Convert most of the remaining "Using plain integer as NULL pointer" sparse
warnings to use NULL.  (Not duplicating patches that are already in -mm,
-bird, or -kj.)

Convert isdn driver struct initializer to use C99 syntax.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/net/skfp/smt.c

@@ -1896,7 +1896,7 @@ void smt_swap_para(struct smt_header *sm, int len, int direction)
 
 static void smt_string_swap(char *data, const char *format, int len)
 {
-	const char	*open_paren = 0 ;
+	const char	*open_paren = NULL ;
 	int	x ;
 
 	while (len > 0  && *format) {