Remove scattered checks for malloc success.

malloc should never fail, and if it does it is unlikely
that anything else useful can be done.  Best approach is to
abort and let some super-daemon restart.

So define xmalloc, xcalloc, xrealloc, xstrdup which don't
fail but just print a message and exit.  Then use those
removing all the tests for failure.

Also replace all "malloc;memset" sequences with 'xcalloc'.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/mapfile.c b/mapfile.c
index 70ff3558..fa238832 100644
--- a/mapfile.c
+++ b/mapfile.c
@@ -166,12 +166,12 @@ void map_fork(void)
 void map_add(struct map_ent **melp,
 	    int devnum, char *metadata, int uuid[4], char *path)
 {
-	struct map_ent *me = malloc(sizeof(*me));
+	struct map_ent *me = xmalloc(sizeof(*me));
 
 	me->devnum = devnum;
 	strcpy(me->metadata, metadata);
 	memcpy(me->uuid, uuid, 16);
-	me->path = path ? strdup(path) : NULL;
+	me->path = path ? xstrdup(path) : NULL;
 	me->next = *melp;
 	me->bad = 0;
 	*melp = me;
@@ -237,7 +237,7 @@ int map_update(struct map_ent **mpp, int devnum, char *metadata,
 			strcpy(mp->metadata, metadata);
 			memcpy(mp->uuid, uuid, 16);
 			free(mp->path);
-			mp->path = path ? strdup(path) : NULL;
+			mp->path = path ? xstrdup(path) : NULL;
 			mp->bad = 0;
 			break;
 		}