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Switch to a scoped lock to avoid missing unlocks in failure returns.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/12@402769 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Michelson
2013-11-12 19:11:28 +00:00
parent 15feef01a0
commit 68d09e0bf1
1 changed files with 1 additions and 4 deletions
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5
main/channel.c
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@@ -7595,8 +7595,7 @@ struct varshead *ast_channel_get_manager_vars(struct ast_channel *chan)
RAII_VAR(struct varshead *, ret, NULL, ao2_cleanup);
RAII_VAR(struct ast_str *, tmp, NULL, ast_free);
struct manager_channel_variable *mcv;
AST_RWLIST_RDLOCK(&channelvars);
SCOPED_LOCK(lock, &channelvars, AST_RWLIST_RDLOCK, AST_RWLIST_UNLOCK);
if (AST_LIST_EMPTY(&channelvars)) {
return NULL;
@@ -7626,13 +7625,11 @@ struct varshead *ast_channel_get_manager_vars(struct ast_channel *chan)
var = ast_var_assign(mcv->name, val ? val : "");
if (!var) {
AST_RWLIST_UNLOCK(&channelvars);
return NULL;
}
AST_RWLIST_INSERT_TAIL(ret, var, entries);
}
AST_RWLIST_UNLOCK(&channelvars);
ao2_ref(ret, +1);
return ret;