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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-01-02 23:19:45 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2010-01-24 19:57:47 +0100 |
| commit | 3970dd8c5169505f0cc5e4c3e2fde7bdd9bbad3e (patch) | |
| tree | 86113b333d7de9d5e6f65b2dc077e44c6656c90b /drivers/pcmcia | |
| parent | 593f010bc0d8f7fde2ce948cac3f77f6a3d9db2b (diff) | |
| download | kernel_samsung_aries-3970dd8c5169505f0cc5e4c3e2fde7bdd9bbad3e.zip kernel_samsung_aries-3970dd8c5169505f0cc5e4c3e2fde7bdd9bbad3e.tar.gz kernel_samsung_aries-3970dd8c5169505f0cc5e4c3e2fde7bdd9bbad3e.tar.bz2 | |
pcmcia: do not lock socket driver module on card insert
Do not lock the socket driver module on card insert, as
the PCMCIA core can handle a socket module removal, at least
if we add a call to socket_remove() on pccardd()'s shutdown.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/cs.c | 13 | ||||
| -rw-r--r-- | drivers/pcmcia/cs_internal.h | 20 |
2 files changed, 10 insertions, 23 deletions
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c index f0630a6..137a5db 100644 --- a/drivers/pcmcia/cs.c +++ b/drivers/pcmcia/cs.c @@ -407,7 +407,7 @@ static void socket_shutdown(struct pcmcia_socket *s) "*** DANGER *** unable to remove socket power\n"); } - cs_socket_put(s); + s->state &= ~SOCKET_INUSE; } static int socket_setup(struct pcmcia_socket *skt, int initial_delay) @@ -496,8 +496,8 @@ static int socket_insert(struct pcmcia_socket *skt) dev_dbg(&skt->dev, "insert\n"); - if (!cs_socket_get(skt)) - return -ENODEV; + WARN_ON(skt->state & SOCKET_INUSE); + skt->state |= SOCKET_INUSE; ret = socket_setup(skt, setup_delay); if (ret == 0) { @@ -697,6 +697,13 @@ static int pccardd(void *__skt) /* make sure we are running before we exit */ set_current_state(TASK_RUNNING); + /* shut down socket, if a device is still present */ + if (skt->state & SOCKET_PRESENT) { + mutex_lock(&skt->skt_mutex); + socket_remove(skt); + mutex_unlock(&skt->skt_mutex); + } + /* remove from the device core */ pccard_sysfs_remove_socket(&skt->dev); device_unregister(&skt->dev); diff --git a/drivers/pcmcia/cs_internal.h b/drivers/pcmcia/cs_internal.h index 3bc02d5..9a3bbad 100644 --- a/drivers/pcmcia/cs_internal.h +++ b/drivers/pcmcia/cs_internal.h @@ -87,26 +87,6 @@ struct pccard_resource_ops { #define SOCKET_CARDBUS 0x8000 #define SOCKET_CARDBUS_CONFIG 0x10000 -static inline int cs_socket_get(struct pcmcia_socket *skt) -{ - int ret; - - WARN_ON(skt->state & SOCKET_INUSE); - - ret = try_module_get(skt->owner); - if (ret) - skt->state |= SOCKET_INUSE; - return ret; -} - -static inline void cs_socket_put(struct pcmcia_socket *skt) -{ - if (skt->state & SOCKET_INUSE) { - skt->state &= ~SOCKET_INUSE; - module_put(skt->owner); - } -} - /* * Stuff internal to module "pcmcia_core": |