Merge to Fedora kernel-2.6.18-1.2224_FC5 patched with stable patch-2.6.18.1-vs2.0...

[linux-2.6.git] / drivers / pcmcia / cs.c

diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 3162998..f9cd831 100644 (file)
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -28,6 +28,7 @@
 #include <linux/pm.h>
 #include <linux/pci.h>
 #include <linux/device.h>
+#include <linux/kthread.h>
 #include <asm/system.h>
 #include <asm/irq.h>
 
@@ -176,6 +177,7 @@ static int pccardd(void *__skt);
  */
 int pcmcia_register_socket(struct pcmcia_socket *socket)
 {
+       struct task_struct *tsk;
        int ret;
 
        if (!socket || !socket->ops || !socket->dev.dev || !socket->resource_ops)
@@ -239,15 +241,18 @@ int pcmcia_register_socket(struct pcmcia_socket *socket)
        mutex_init(&socket->skt_mutex);
        spin_lock_init(&socket->thread_lock);
 
-       ret = kernel_thread(pccardd, socket, CLONE_KERNEL);
-       if (ret < 0)
+       tsk = kthread_run(pccardd, socket, "pccardd");
+       if (IS_ERR(tsk)) {
+               ret = PTR_ERR(tsk);
                goto err;
+       }
 
        wait_for_completion(&socket->thread_done);
-       if(!socket->thread) {
+       if (!socket->thread) {
                printk(KERN_WARNING "PCMCIA: warning: socket thread for socket %p did not start\n", socket);
                return -EIO;
        }
+
        pcmcia_parse_events(socket, SS_DETECT);
 
        return 0;
@@ -272,10 +277,8 @@ void pcmcia_unregister_socket(struct pcmcia_socket *socket)
        cs_dbg(socket, 0, "pcmcia_unregister_socket(0x%p)\n", socket->ops);
 
        if (socket->thread) {
-               init_completion(&socket->thread_done);
-               socket->thread = NULL;
                wake_up(&socket->thread_wait);
-               wait_for_completion(&socket->thread_done);
+               kthread_stop(socket->thread);
        }
        release_cis_mem(socket);
 
@@ -630,8 +633,6 @@ static int pccardd(void *__skt)
        DECLARE_WAITQUEUE(wait, current);
        int ret;
 
-       daemonize("pccardd");
-
        skt->thread = current;
        skt->socket = dead_socket;
        skt->ops->init(skt);
@@ -643,7 +644,8 @@ static int pccardd(void *__skt)
                printk(KERN_WARNING "PCMCIA: unable to register socket 0x%p\n",
                        skt);
                skt->thread = NULL;
-               complete_and_exit(&skt->thread_done, 0);
+               complete(&skt->thread_done);
+               return 0;
        }
 
        add_wait_queue(&skt->thread_wait, &wait);
@@ -674,7 +676,7 @@ static int pccardd(void *__skt)
                        continue;
                }
 
-               if (!skt->thread)
+               if (kthread_should_stop())
                        break;
 
                schedule();
@@ -688,7 +690,7 @@ static int pccardd(void *__skt)
        /* remove from the device core */
        class_device_unregister(&skt->dev);
 
-       complete_and_exit(&skt->thread_done, 0);
+       return 0;
 }
 
 /*
@@ -697,11 +699,12 @@ static int pccardd(void *__skt)
  */
 void pcmcia_parse_events(struct pcmcia_socket *s, u_int events)
 {
+       unsigned long flags;
        cs_dbg(s, 4, "parse_events: events %08x\n", events);
        if (s->thread) {
-               spin_lock(&s->thread_lock);
+               spin_lock_irqsave(&s->thread_lock, flags);
                s->thread_events |= events;
-               spin_unlock(&s->thread_lock);
+               spin_unlock_irqrestore(&s->thread_lock, flags);
 
                wake_up(&s->thread_wait);
        }