From 0b402094199762dde81bee8c32d323cf52f2c6e7 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 22 Apr 2007 13:55:36 +0100 Subject: [PATCH] pcmcia: cs: kill thread_wait There is not reason to have a waitqueue if it's always the same thread that is waiting for it. Just use wake_up_process instead. Signed-off-by: Christoph Hellwig Small modification: Also remove unused variable. Signed-off-by: Dominik Brodowski --- drivers/pcmcia/cs.c | 12 +++--------- include/pcmcia/ss.h | 1 - 2 files changed, 3 insertions(+), 10 deletions(-) diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c index 29276bd28295..6bb1bb5db9c4 100644 --- a/drivers/pcmcia/cs.c +++ b/drivers/pcmcia/cs.c @@ -238,7 +238,6 @@ int pcmcia_register_socket(struct pcmcia_socket *socket) init_completion(&socket->socket_released); init_completion(&socket->thread_done); - init_waitqueue_head(&socket->thread_wait); mutex_init(&socket->skt_mutex); spin_lock_init(&socket->thread_lock); @@ -278,10 +277,9 @@ void pcmcia_unregister_socket(struct pcmcia_socket *socket) cs_dbg(socket, 0, "pcmcia_unregister_socket(0x%p)\n", socket->ops); - if (socket->thread) { - wake_up(&socket->thread_wait); + if (socket->thread) kthread_stop(socket->thread); - } + release_cis_mem(socket); /* remove from our own list */ @@ -635,7 +633,6 @@ static void socket_detect_change(struct pcmcia_socket *skt) static int pccardd(void *__skt) { struct pcmcia_socket *skt = __skt; - DECLARE_WAITQUEUE(wait, current); int ret; skt->thread = current; @@ -656,7 +653,6 @@ static int pccardd(void *__skt) if (ret) dev_warn(&skt->dev, "err %d adding socket attributes\n", ret); - add_wait_queue(&skt->thread_wait, &wait); complete(&skt->thread_done); set_freezable(); @@ -694,8 +690,6 @@ static int pccardd(void *__skt) /* make sure we are running before we exit */ set_current_state(TASK_RUNNING); - remove_wait_queue(&skt->thread_wait, &wait); - /* remove from the device core */ pccard_sysfs_remove_socket(&skt->dev); device_unregister(&skt->dev); @@ -716,7 +710,7 @@ void pcmcia_parse_events(struct pcmcia_socket *s, u_int events) s->thread_events |= events; spin_unlock_irqrestore(&s->thread_lock, flags); - wake_up(&s->thread_wait); + wake_up_process(s->thread); } } /* pcmcia_parse_events */ EXPORT_SYMBOL(pcmcia_parse_events); diff --git a/include/pcmcia/ss.h b/include/pcmcia/ss.h index f95dca077c1c..2edc7fa3bab3 100644 --- a/include/pcmcia/ss.h +++ b/include/pcmcia/ss.h @@ -245,7 +245,6 @@ struct pcmcia_socket { struct task_struct *thread; struct completion thread_done; - wait_queue_head_t thread_wait; spinlock_t thread_lock; /* protects thread_events */ unsigned int thread_events; -- 2.39.5