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Make sure index >= 0 before initializing

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3518 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2004-07-27 02:19:52 +00:00
parent 5bd8cf6cde
commit 00f3bf560b
1 changed files with 7 additions and 7 deletions
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channels/chan_zap.c
+7 -7
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@@ -3750,6 +3750,13 @@ struct ast_frame *zt_read(struct ast_channel *ast)
index = zt_get_index(ast, p, 0);
/* Hang up if we don't really exist */
if (index < 0) {
ast_log(LOG_WARNING, "We dont exist?\n");
ast_mutex_unlock(&p->lock);
return NULL;
}
p->subs[index].f.frametype = AST_FRAME_NULL;
p->subs[index].f.datalen = 0;
p->subs[index].f.samples = 0;
@@ -3761,13 +3768,6 @@ struct ast_frame *zt_read(struct ast_channel *ast)
p->subs[index].f.src = "zt_read";
p->subs[index].f.data = NULL;
/* Hang up if we don't really exist */
if (index < 0) {
ast_log(LOG_WARNING, "We dont exist?\n");
ast_mutex_unlock(&p->lock);
return NULL;
}
/* make sure it sends initial key state as first frame */
if (p->radio && (!p->firstradio))
{