isdn/sc: irq handler clean

* pass card number to irq handler

* use card number in irq handler to avoid looping through each adapter

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/isdn/sc/init.c b/drivers/isdn/sc/init.c
index d09c854cfac7..dd0acd06750b 100644
--- a/drivers/isdn/sc/init.c
+++ b/drivers/isdn/sc/init.c
@@ -334,7 +334,8 @@ static int __init sc_init(void)
                  */
                 sc_adapter[cinst]->interrupt = irq[b];
                 if (request_irq(sc_adapter[cinst]->interrupt, interrupt_handler,
-                                IRQF_DISABLED, interface->id, NULL))
+                                IRQF_DISABLED, interface->id,
+                                (void *)(unsigned long) cinst))
                 {
                         kfree(sc_adapter[cinst]->channel);
                         indicate_status(cinst, ISDN_STAT_UNLOAD, 0, NULL);      /* Fix me */