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pcmcia: use state machine for extended requery

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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 <[email protected]>
Signed-off-by: Dominik Brodowski <[email protected]>
This commit is contained in:
Dominik Brodowski 2010-01-24 14:36:59 +01:00
commit aa584ca4cd
2 changed files with 25 additions and 78 deletions
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11
include/pcmcia/ss.h
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@ -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;