[PATCH] pcmcia: multifunction card handling fixes

s->functions needs to be initialized earlier, for the "let's see
how high it increases" approach means that pcmcia_request_irq()
(which makes use of this value) is confused, and might request
an exclusive IRQ first even though it is not supposed to.

Also, a CIS override autoloaded using the firmware loader may
allow for the use of more or less functions in a multifunction
card. Therefore, we may need to schedule a call to add this
second function later on, or simply remove the other function
(it's always the first -valid- function which reaches this
codepath).

Many thanks to Fabrice Bellet for debugging and testing patches.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/include/pcmcia/ss.h b/include/pcmcia/ss.h
index ede639812f8a..623a0fc0dae1 100644
--- a/include/pcmcia/ss.h
+++ b/include/pcmcia/ss.h
@@ -262,9 +262,10 @@ struct pcmcia_socket {
                 u8                      present:1,      /* PCMCIA card is present in socket */
                                         busy:1,         /* "master" ioctl is used */
                                         dead:1,         /* pcmcia module is being unloaded */
-                                        device_add_pending:1, /* a pseudo-multifunction-device
+                                        device_add_pending:1, /* a multifunction-device
                                                                * add event is pending */
-                                        reserved:4;
+                                        mfc_pfc:1,      /* the pending event adds a mfc (1) or pfc (0) */
+                                        reserved:3;
         }                               pcmcia_state;
 
         struct work_struct              device_add;     /* for adding further pseudo-multifunction