X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=src%2Fnotify_email.c;h=0aed27f12bb2ac8b41b5fa4e80d586e0c71f8bca;hb=refs%2Fheads%2Fsh%2Fcollectd-4.9;hp=10d5ab1bd0683abdaf27872a97dd24031347ab73;hpb=a12cb627513a24de25401d3e0e29763db724bf5c;p=collectd.git

diff --git a/src/notify_email.c b/src/notify_email.c
index 10d5ab1b..0aed27f1 100644
--- a/src/notify_email.c
+++ b/src/notify_email.c
@@ -272,6 +272,12 @@ static int notify_email_notification (const notification_t *n,
 
   pthread_mutex_lock (&session_lock);
 
+  if (session == NULL) {
+    /* Initialization failed or we're in the process of shutting down. */
+    pthread_mutex_unlock (&session_lock);
+    return (-1);
+  }
+
   if (!(message = smtp_add_message (session))) {
     pthread_mutex_unlock (&session_lock);
     ERROR ("notify_email plugin: cannot set SMTP message");