svn commit: r298288 - head/sbin/dump

[Pedro F. Giffuni]

Author: pfg
Date: Tue Apr 19 19:13:33 2016
New Revision: 298288
URL: https://svnweb.freebsd.org/changeset/base/298288

Log:
  dump: use NULL instead of zero for pointers.
  
  Clean out the casts from calloc(3) while here.

Modified:
  head/sbin/dump/itime.c
  head/sbin/dump/main.c

Modified: head/sbin/dump/itime.c
==============================================================================
--- head/sbin/dump/itime.c	Tue Apr 19 19:08:44 2016	(r298287)
+++ head/sbin/dump/itime.c	Tue Apr 19 19:13:33 2016	(r298288)
@@ -58,7 +58,7 @@ struct dumptime {
 	SLIST_ENTRY(dumptime) dt_list;
 };
 SLIST_HEAD(dthead, dumptime) dthead = SLIST_HEAD_INITIALIZER(dthead);
-struct	dumpdates **ddatev = 0;
+struct	dumpdates **ddatev = NULL;
 int	nddates = 0;
 
 static	void dumprecout(FILE *, const struct dumpdates *);
@@ -118,8 +118,7 @@ readdumptimes(FILE *df)
 	 *	arrayify the list, leaving enough room for the additional
 	 *	record that we may have to add to the ddate structure
 	 */
-	ddatev = (struct dumpdates **)
-		calloc((unsigned) (nddates + 1), sizeof (struct dumpdates *));
+	ddatev = calloc((unsigned) (nddates + 1), sizeof (struct dumpdates *));
 	dtwalk = SLIST_FIRST(&dthead);
 	for (i = nddates - 1; i >= 0; i--, dtwalk = SLIST_NEXT(dtwalk, dt_list))
 		ddatev[i] = &dtwalk->dt_value;
@@ -174,8 +173,8 @@ putdumptime(void)
 	fd = fileno(df);
 	(void) flock(fd, LOCK_EX);
 	fname = disk;
-	free((char *)ddatev);
-	ddatev = 0;
+	free(ddatev);
+	ddatev = NULL;
 	nddates = 0;
 	readdumptimes(df);
 	if (fseek(df, 0L, 0) < 0)

Modified: head/sbin/dump/main.c
==============================================================================
--- head/sbin/dump/main.c	Tue Apr 19 19:08:44 2016	(r298287)
+++ head/sbin/dump/main.c	Tue Apr 19 19:13:33 2016	(r298288)
@@ -340,7 +340,7 @@ main(int argc, char *argv[])
 	spcl.c_dev[NAMELEN-1]='\0';
 	spcl.c_filesys[NAMELEN-1]='\0';
 
-	if ((mntpt = getmntpt(disk, &mntflags)) != 0) {
+	if ((mntpt = getmntpt(disk, &mntflags)) != NULL) {
 		if (mntflags & MNT_RDONLY) {
 			if (snapdump != 0) {
 				msg("WARNING: %s\n",