[PATCH] hostap: Remove hw specific dev_open/close handlers

Host AP driver used hardware model specific dev_open/close handlers
that were called on dev_open/close if the hardware driver had
registered the handler. These were only used for hostap_cs and only
for tracking whether any of the netdevs were UP. This information is
already available from local->num_dev_open, so there is not need for
the special open/close handler.

Let's get rid of these handlers. In addition to cleaning up the code,
this fixes a module refcounting issue for hostap_cs where ejecting the
card while any of the netdevs were open did not decrement refcount
properly.

Signed-off-by: Jouni Malinen <jkmaline@cc.hut.fi>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/wireless/hostap/hostap_wlan.h

@@ -552,8 +552,6 @@ struct prism2_helper_functions {
 	 * (hostap_{cs,plx,pci}.c */
 	int (*card_present)(local_info_t *local);
 	void (*cor_sreset)(local_info_t *local);
-	int (*dev_open)(local_info_t *local);
-	int (*dev_close)(local_info_t *local);
 	void (*genesis_reset)(local_info_t *local, int hcr);
 
 	/* the following functions are from hostap_hw.c, but they may have some