sparse pointer use of zero as null

Get rid of sparse related warnings from places that use integer as NULL
pointer.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
index e7905816c4c..64965e1c21c 100644
--- a/fs/nls/nls_base.c
+++ b/fs/nls/nls_base.c
@@ -111,7 +111,7 @@ utf8_wctomb(__u8 *s, wchar_t wc, int maxlen)
         int c, nc;
         const struct utf8_table *t;
   
-        if (s == 0)
+        if (!s)
                 return 0;
   
         l = wc;