Fix a voicemail memory leak with heard/deleted messages.

open_mailbox() was changed quite a long time ago to allocate this memory.
close_mailbox() should have been changed to be responsible for freeing it.
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Merged revisions 354889 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 354890 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@354903 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_voicemail.c

@@ -8133,11 +8133,11 @@ static int close_mailbox(struct vm_state *vms, struct ast_vm_user *vmu)
 #endif
 
 done:
-	if (vms->deleted && vmu->maxmsg) {
-		memset(vms->deleted, 0, vms->dh_arraysize * sizeof(int));
+	if (vms->deleted) {
+		ast_free(vms->deleted);
 	}
-	if (vms->heard && vmu->maxmsg) {
-		memset(vms->heard, 0, vms->dh_arraysize * sizeof(int));
+	if (vms->heard) {
+		ast_free(vms->heard);
 	}
 
 	return 0;
@@ -10126,17 +10126,6 @@ static int vm_execmain(struct ast_channel *chan, const char *data)
 	vmstate_insert(&vms);
 	init_vm_state(&vms);
 #endif
-	/* Avoid allocating a buffer of 0 bytes, because some platforms really don't like that. */
-	if (!(vms.deleted = ast_calloc(vmu->maxmsg ? vmu->maxmsg : 1, sizeof(int)))) {
-		ast_log(AST_LOG_ERROR, "Could not allocate memory for deleted message storage!\n");
-		cmd = ast_play_and_wait(chan, "an-error-has-occured");
-		return -1;
-	}
-	if (!(vms.heard = ast_calloc(vmu->maxmsg ? vmu->maxmsg : 1, sizeof(int)))) {
-		ast_log(AST_LOG_ERROR, "Could not allocate memory for heard message storage!\n");
-		cmd = ast_play_and_wait(chan, "an-error-has-occured");
-		return -1;
-	}
 
 	/* Set language from config to override channel language */
 	if (!ast_strlen_zero(vmu->language))
@@ -10719,10 +10708,6 @@ out:
 #endif
 	if (vmu)
 		free_user(vmu);
-	if (vms.deleted)
-		ast_free(vms.deleted);
-	if (vms.heard)
-		ast_free(vms.heard);
 
 #ifdef IMAP_STORAGE
 	pthread_setspecific(ts_vmstate.key, NULL);