dde_ipxe: fix null pointer de-referencing

Issue #593
2013-04-12 12:30:17 +02:00 · 2013-04-12 12:30:17 +02:00 · 958cdffa7b
parent 30927f68a7
commit 958cdffa7b
1 changed files with 4 additions and 0 deletions
--- 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;