pcmcia: use state machine for extended requery

The requery callback now also handles the addition of a second pseudo
multifunction device. Avoids messing with dev_{g,s}et_drvdata(), and
fixes any workqueue <-> skt_mutex deadlock.

Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 3 insertions, 8 deletions

diff --git a/include/pcmcia/ss.h b/include/pcmcia/ss.h
index ea5dec8c0d76..32896a773910 100644
--- a/include/pcmcia/ss.h
+++ b/include/pcmcia/ss.h
@@ -230,18 +230,13 @@ struct pcmcia_socket {
                 u8                      busy:1;
                 /* pcmcia module is being unloaded */
                 u8                      dead:1;
-                /* a multifunction-device add event is pending */
-                u8                      device_add_pending:1;
-                /* the pending event adds a mfc (1) or pfc (0) */
-                u8                      mfc_pfc:1;
+                /* the PCMCIA card consists of two pseudo devices */
+                u8                      has_pfc:1;
 
-                u8                      reserved:3;
+                u8                      reserved:4;
         } pcmcia_state;
 
 
-        /* for adding further pseudo-multifunction devices */
-        struct work_struct              device_add;
-
 #ifdef CONFIG_PCMCIA_IOCTL
         struct user_info_t              *user;
         wait_queue_head_t               queue;