svn commit: r188056 - head/sys/kern

[Warner Losh]

Author: imp
Date: Tue Feb  3 07:50:41 2009
New Revision: 188056
URL: http://svn.freebsd.org/changeset/base/188056

Log:
  o Use unsigned for bit fields.
  o Use NULL for pointers in preference to 0.

Modified:
  head/sys/kern/subr_witness.c

Modified: head/sys/kern/subr_witness.c
==============================================================================
--- head/sys/kern/subr_witness.c	Tue Feb  3 07:50:01 2009	(r188055)
+++ head/sys/kern/subr_witness.c	Tue Feb  3 07:50:41 2009	(r188056)
@@ -235,8 +235,8 @@ struct witness {
 	uint16_t 		w_num_descendants; /* direct/indirect
 						    * descendant count */
 	int16_t 		w_ddb_level;
-	int 			w_displayed:1;
-	int 			w_reversed:1;
+	unsigned		w_displayed:1;
+	unsigned		w_reversed:1;
 };
 
 STAILQ_HEAD(witness_list, witness);
@@ -376,7 +376,7 @@ static void	witness_setflag(struct lock_
 #define	witness_debugger(c)
 #endif
 
-SYSCTL_NODE(_debug, OID_AUTO, witness, CTLFLAG_RW, 0, "Witness Locking");
+SYSCTL_NODE(_debug, OID_AUTO, witness, CTLFLAG_RW, NULL, "Witness Locking");
 
 /*
  * If set to 0, lock order checking is disabled.  If set to -1,