Behavior of null pointer dereference is undefined in the C language.
Portably implement the desired behavior.

Reported-by: Yang Yeping <[email protected]>
Signed-off-by: Stefan Richter <[email protected]>
---
 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;

-- 
Stefan Richter
-=====-===-- =-=- =-==-
http://arcgraph.de/sr/
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