[sr-dev] git:4.2:0d47a5cf: sca: initialize sca variable to catch destroy on shutdown at startup

[Daniel-Constantin Mierla]

Module: kamailio
Branch: 4.2
Commit: 0d47a5cfc723be2b8ef2baeb439d5df05b5c580c
URL: https://github.com/kamailio/kamailio/commit/0d47a5cfc723be2b8ef2baeb439d5df05b5c580c

Author: Daniel-Constantin Mierla <miconda at gmail.com>
Committer: Daniel-Constantin Mierla <miconda at gmail.com>
Date: 2015-02-04T18:07:04+01:00

sca: initialize sca variable to catch destroy on shutdown at startup

- reported by GH#35

(cherry picked from commit 010977f5febcf923a31d545bd631fbee11dd426c)

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Modified: modules/sca/sca.c

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Diff:  https://github.com/kamailio/kamailio/commit/0d47a5cfc723be2b8ef2baeb439d5df05b5c580c.diff
Patch: https://github.com/kamailio/kamailio/commit/0d47a5cfc723be2b8ef2baeb439d5df05b5c580c.patch

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diff --git a/modules/sca/sca.c b/modules/sca/sca.c
index 743ec96..e739e18 100644
--- a/modules/sca/sca.c
+++ b/modules/sca/sca.c
@@ -40,7 +40,7 @@
 MODULE_VERSION
 
 /* MODULE OBJECT */
-sca_mod			*sca;
+sca_mod			*sca = NULL;
 
 
 /* EXTERNAL API */
@@ -363,10 +363,15 @@ sca_mod_init( void )
     void
 sca_mod_destroy( void )
 {
+	if(sca==0)
+		return;
+
     /* write back to the DB to retain most current subscription info */
     if ( sca_subscription_db_update() != 0 ) {
-	LM_ERR( "sca_mod_destroy: failed to save current subscriptions "
-		"in DB %.*s", STR_FMT( sca->cfg->db_url ));
+		if(sca && sca->cfg && sca->cfg->db_url) {
+			LM_ERR( "sca_mod_destroy: failed to save current subscriptions "
+				"in DB %.*s", STR_FMT( sca->cfg->db_url ));
+		}
     }
 
     sca_db_disconnect();