[NET]: sparse warning fixes

Fix a bunch of sparse warnings. Mostly about 0 used as
NULL pointer, and shadowed variable declarations.
One notable case was that hash size should have been unsigned.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index d27ee8c0da3f..8228b57eb18f 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -107,7 +107,7 @@ struct inet_hashinfo {
          */
         struct inet_bind_hashbucket     *bhash;
 
-        int                             bhash_size;
+        unsigned int                    bhash_size;
         unsigned int                    ehash_size;
 
         /* All sockets in TCP_LISTEN state will be in here.  This is the only