cnic: Return proper error code if we fail to send netlink message

to allow iSCSI connection to fail faster instead of waiting for the
long timeout.

Update version to 2.5.6.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/cnic_if.h b/drivers/net/cnic_if.h
index bc7000a..642b9d5 100644
--- a/drivers/net/cnic_if.h
+++ b/drivers/net/cnic_if.h
@@ -12,8 +12,8 @@
 #ifndef CNIC_IF_H
 #define CNIC_IF_H
 
-#define CNIC_MODULE_VERSION	"2.5.3"
-#define CNIC_MODULE_RELDATE	"June 6, 2011"
+#define CNIC_MODULE_VERSION	"2.5.6"
+#define CNIC_MODULE_RELDATE	"July 12, 2011"
 
 #define CNIC_ULP_RDMA		0
 #define CNIC_ULP_ISCSI		1