snap: handle registration error and compile warning

If this module can't load, it is almost certainly because something else
is already bound to that SAP. So in that case, return the same error code
as other SAP usage, and fail the module load.

Also fixes a compiler warning about printk of non const.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2009-02-22 00:03:19 -08:00 коммит произвёл David S. Miller
Родитель 01af4a0e3c
Коммит 0117cfabe3
1 изменённых файлов: 4 добавлений и 3 удалений

Просмотреть файл

@ -95,15 +95,16 @@ static int snap_request(struct datalink_proto *dl,
EXPORT_SYMBOL(register_snap_client);
EXPORT_SYMBOL(unregister_snap_client);
static char snap_err_msg[] __initdata =
static const char snap_err_msg[] __initconst =
KERN_CRIT "SNAP - unable to register with 802.2\n";
static int __init snap_init(void)
{
snap_sap = llc_sap_open(0xAA, snap_rcv);
if (!snap_sap)
if (!snap_sap) {
printk(snap_err_msg);
return -EBUSY;
}
return 0;
}