tools/firewire: nosy-dump: check for allocation failure
Behavior of null pointer dereference is undefined in the C language.
Portably implement the desired behavior.
Reported-by: Yang Yeping <yangyeping_666@hotmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
diff --git a/tools/firewire/nosy-dump.c b/tools/firewire/nosy-dump.c
index f93b776..3179c71 100644
--- a/tools/firewire/nosy-dump.c
+++ b/tools/firewire/nosy-dump.c
@@ -150,6 +150,8 @@
/* we put the ack in the subaction struct for easy access. */
sa = malloc(sizeof *sa - sizeof sa->packet + length);
+ if (!sa)
+ exit(EXIT_FAILURE);
sa->ack = data[length / 4 - 1];
sa->length = length;
memcpy(&sa->packet, data, length);
@@ -180,6 +182,8 @@
}
t = malloc(sizeof *t);
+ if (!t)
+ exit(EXIT_FAILURE);
t->request_node = request_node;
t->response_node = response_node;
t->tlabel = tlabel;