varnish: fix some leaks in error paths

diff --git a/src/varnish.c b/src/varnish.c
index 8e6d95e..b962261 100644 (file)
--- a/src/varnish.c
+++ b/src/varnish.c
@@ -608,6 +608,7 @@ static int varnish_read (user_data_t *ud) /* {{{ */
                status = VSM_n_Arg (vd, conf->instance);
                if (status < 0)
                {
+                       VSM_Delete (vd);
                        ERROR ("varnish plugin: VSM_n_Arg (\"%s\") failed "
                                        "with status %i.",
                                        conf->instance, status);
@@ -621,7 +622,8 @@ static int varnish_read (user_data_t *ud) /* {{{ */
        if (VSM_Open (vd))
 #endif
        {
-               ERROR ("varnish plugin: Unable to load statistics.");
+               VSM_Delete (vd);
+               ERROR ("varnish plugin: Unable to open connection.");
 
                return (-1);
        }
@@ -631,6 +633,14 @@ static int varnish_read (user_data_t *ud) /* {{{ */
 #else /* if HAVE_VARNISH_V4 */
        stats = VSC_Main(vd, NULL);
 #endif
+       if (!stats)
+       {
+               VSM_Delete (vd);
+               ERROR ("varnish plugin: Unable to get statistics.");
+
+               return (-1);
+       }
+
 
        varnish_monitor (conf, stats);
        VSM_Close (vd);