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-rw-r--r--apps/app_senddtmf.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/apps/app_senddtmf.c b/apps/app_senddtmf.c
index fe1af90f6..e4eb33ecf 100644
--- a/apps/app_senddtmf.c
+++ b/apps/app_senddtmf.c
@@ -75,6 +75,11 @@ static int senddtmf_exec(struct ast_channel *chan, void *data)
LOCAL_USER_ADD(u);
digits = ast_strdupa(data);
+ if (!digits) {
+ ast_log(LOG_ERROR, "Out of Memory!\n");
+ LOCAL_USER_REMOVE(u);
+ return -1;
+ }
if ((to = strchr(digits,'|'))) {
*to = '\0';