We should only clear this value if we have to

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@94551 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_zap.c b/channels/chan_zap.c
index d25e025..d3adaf3 100644 (file)
--- a/channels/chan_zap.c
+++ b/channels/chan_zap.c
@@ -8905,10 +8905,11 @@ static void ss7_start_call(struct zt_pvt *p, struct zt_ss7 *linkset)
        /* Clear this after we set it */
        p->gen_dig_scheme = 0;
 
-       if (!ast_strlen_zero(p->lspi_ident))
+       if (!ast_strlen_zero(p->lspi_ident)) {
                pbx_builtin_setvar_helper(c, "SS7_LSPI_IDENT", p->lspi_ident);
-       /* Clear this after we set it */
-       p->lspi_ident[0] = 0;
+               /* Clear this after we set it */
+               p->lspi_ident[0] = 0;
+       }
 
        snprintf(tmp, sizeof(tmp), "%d", p->call_ref_ident);
        pbx_builtin_setvar_helper(c, "SS7_CALLREF_IDENT", tmp);