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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-01-17 19:30:53 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-02-17 17:48:26 +0100 |
| commit | af461fc1875b6ec18e23b5f670af36c4ed35c84e (patch) | |
| tree | fa09a446c94d533c169b9e28e97c0e8c03d36912 /drivers/pcmcia/cs.c | |
| parent | f971dbd5da4e2fbf756d07b938a9c65a9c75178b (diff) | |
| download | linux-af461fc1875b6ec18e23b5f670af36c4ed35c84e.tar.gz linux-af461fc1875b6ec18e23b5f670af36c4ed35c84e.tar.bz2 linux-af461fc1875b6ec18e23b5f670af36c4ed35c84e.zip | |
pcmcia: delay re-scanning and re-querying of PCMCIA bus
After a CIS update -- or the finalization of the resource database --,
proceed with the re-scanning or re-querying of PCMCIA cards only in
a separate thread to avoid deadlocks.
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/pcmcia/cs.c')
| -rw-r--r-- | drivers/pcmcia/cs.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c index 823ecda32216..d529e02c2d54 100644 --- a/drivers/pcmcia/cs.c +++ b/drivers/pcmcia/cs.c @@ -728,6 +728,11 @@ static int pccardd(void *__skt) if (!ret) socket_suspend(skt); } + if ((sysfs_events & PCMCIA_UEVENT_REQUERY) && + !(skt->state & SOCKET_CARDBUS)) { + if (!ret && skt->callback) + skt->callback->requery(skt); + } } mutex_unlock(&skt->skt_mutex); @@ -783,7 +788,8 @@ EXPORT_SYMBOL(pcmcia_parse_events); * userspace-issued insert, eject, suspend and resume commands must be * handled by pccardd to avoid any sysfs-related deadlocks. Valid events * are PCMCIA_UEVENT_EJECT (for eject), PCMCIA_UEVENT__INSERT (for insert), - * PCMCIA_UEVENT_RESUME (for resume) and PCMCIA_UEVENT_SUSPEND (for suspend). + * PCMCIA_UEVENT_RESUME (for resume), PCMCIA_UEVENT_SUSPEND (for suspend) + * and PCMCIA_UEVENT_REQUERY (for re-querying the PCMCIA card). */ void pcmcia_parse_uevents(struct pcmcia_socket *s, u_int events) { |