Re-fix dahdi_request() iflist locking since CCSS merged.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@259229 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_dahdi.c b/channels/chan_dahdi.c
index aae30d3da15c3fe1b80590f83d133ced979e89e7..2ae8cf92d87cb35bc68ab79cf92f33fec1d52746 100644 (file)
--- a/channels/chan_dahdi.c
+++ b/channels/chan_dahdi.c
@@ -12522,15 +12522,16 @@ static struct ast_channel *dahdi_request(const char *type, format_t format, cons
        int transcapdigital = 0;
        struct dahdi_starting_point start;
 
+       ast_mutex_lock(&iflock);
        p = determine_starting_point(data, &start);
        if (!p) {
                /* We couldn't determine a starting point, which likely means badly-formatted channel name. Abort! */
+               ast_mutex_unlock(&iflock);
                return NULL;
        }
 
        /* Search for an unowned channel */
        exitpvt = p;
-       ast_mutex_lock(&iflock);
        while (p && !tmp) {
                if (start.roundrobin)
                        round_robin[start.rr_starting_point] = p;
@@ -12714,11 +12715,12 @@ static int dahdi_cc_callback(struct ast_channel *inbound, const char *dest, ast_
        int groupmatched = 0;
        int channelmatched = 0;
 
+       ast_mutex_lock(&iflock);
        p = determine_starting_point(dest, &start);
        if (!p) {
+               ast_mutex_unlock(&iflock);
                return -1;
        }
-       ast_mutex_lock(&iflock);
        exitpvt = p;
        for (;;) {
                if (is_group_or_channel_match(p, start.span, start.groupmatch, &groupmatched, start.channelmatch, &channelmatched)) {