From af461fc1875b6ec18e23b5f670af36c4ed35c84e Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Sun, 17 Jan 2010 19:30:53 +0100 Subject: 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 Signed-off-by: Dominik Brodowski --- drivers/pcmcia/cs.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers/pcmcia/cs.c') 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) { -- cgit v1.2.3