Date: Mon, 22 Oct 2012 15:17:17 +0200 From: Stefan Richter Subject: 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 Signed-off-by: Stefan Richter --- tools/firewire/nosy-dump.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/tools/firewire/nosy-dump.c +++ b/tools/firewire/nosy-dump.c @@ -150,6 +150,8 @@ subaction_create(uint32_t *data, size_t /* 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 @@ link_transaction_lookup(int request_node } t = malloc(sizeof *t); + if (!t) + exit(EXIT_FAILURE); t->request_node = request_node; t->response_node = response_node; t->tlabel = tlabel;