Fail overtly when asprintf fails to allocate memory

.. rather that causing a less-obvious violation of segments.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/config.c b/config.c
index 121b3373..78bbb9d2 100644
--- a/config.c
+++ b/config.c
@@ -559,7 +559,7 @@ void mailfromline(char *line)
 			alert_mail_from = strdup(w);
 		else {
 			char *t= NULL;
-			asprintf(&t, "%s %s", alert_mail_from, w);
+			xasprintf(&t, "%s %s", alert_mail_from, w);
 			free(alert_mail_from);
 			alert_mail_from = t;
 		}