dde_ipxe: fix null pointer de-referencing

Issue #593
genodelabs · Apr 26, 2013 · 958cdff · 958cdff
1 parent 30927f6
commit 958cdff
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/dde_ipxe/src/lib/dde_ipxe/nic.c b/dde_ipxe/src/lib/dde_ipxe/nic.c
@@ -260,6 +260,10 @@ int dde_ipxe_nic_tx(unsigned if_index, const char *packet, unsigned packet_len)
 	struct io_buffer *iobuf = alloc_iob(packet_len);
 
 	LEAVE;
+
+	if (!iobuf)
+		return -1;
+
 	memcpy(iob_put(iobuf, packet_len), packet, packet_len);
 	ENTER;