prevent seg

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@10296 d0543943-73ff-0310-b7d9-9358b9ac24b2

diff --git a/src/switch_core_session.c b/src/switch_core_session.c
index efdc24ce61c9dd4c0b9e14a688504161b20ed4e5..1ebc81488f1b0a7a93e5292755eed080eb8f943c 100644 (file)
--- a/src/switch_core_session.c
+++ b/src/switch_core_session.c
@@ -86,7 +86,7 @@ SWITCH_DECLARE(void) switch_core_session_hupall_matching_var(const char *var_nam
                        const char *this_val;
                        session = (switch_core_session_t *) val;
                        switch_core_session_read_lock(session);
-                       if ((this_val = switch_channel_get_variable(session->channel, var_name)) && (!strcmp(this_val, var_val))) {
+                       if ((this_val = switch_channel_get_variable(session->channel, var_name)) && && var_val && (!strcmp(this_val, var_val))) {
                                switch_channel_hangup(switch_core_session_get_channel(session), cause);
                        }
                        switch_core_session_rwunlock(session);