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path: root/drivers/staging/usbip/usbip_event.c
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Diffstat (limited to 'drivers/staging/usbip/usbip_event.c')
-rw-r--r--drivers/staging/usbip/usbip_event.c38
1 files changed, 13 insertions, 25 deletions
diff --git a/drivers/staging/usbip/usbip_event.c b/drivers/staging/usbip/usbip_event.c
index af3832b03e4b..f4b287ef71d0 100644
--- a/drivers/staging/usbip/usbip_event.c
+++ b/drivers/staging/usbip/usbip_event.c
@@ -62,55 +62,43 @@ static int event_handler(struct usbip_device *ud)
return 0;
}
-static void event_handler_loop(struct usbip_task *ut)
+static int event_handler_loop(void *data)
{
- struct usbip_device *ud = container_of(ut, struct usbip_device, eh);
+ struct usbip_device *ud = data;
- while (1) {
- if (signal_pending(current)) {
- usbip_dbg_eh("signal catched!\n");
- break;
- }
+ while (!kthread_should_stop()) {
+ wait_event_interruptible(ud->eh_waitq,
+ usbip_event_happened(ud) ||
+ kthread_should_stop());
+ usbip_dbg_eh("wakeup\n");
if (event_handler(ud) < 0)
break;
-
- wait_event_interruptible(ud->eh_waitq,
- usbip_event_happened(ud));
- usbip_dbg_eh("wakeup\n");
}
+ return 0;
}
int usbip_start_eh(struct usbip_device *ud)
{
- struct usbip_task *eh = &ud->eh;
- struct task_struct *th;
-
init_waitqueue_head(&ud->eh_waitq);
ud->event = 0;
- usbip_task_init(eh, "usbip_eh", event_handler_loop);
-
- th = kthread_run(usbip_thread, (void *)eh, "usbip");
- if (IS_ERR(th)) {
+ ud->eh = kthread_run(event_handler_loop, ud, "usbip_eh");
+ if (IS_ERR(ud->eh)) {
printk(KERN_WARNING
"Unable to start control thread\n");
- return PTR_ERR(th);
+ return PTR_ERR(ud->eh);
}
-
- wait_for_completion(&eh->thread_done);
return 0;
}
EXPORT_SYMBOL_GPL(usbip_start_eh);
void usbip_stop_eh(struct usbip_device *ud)
{
- struct usbip_task *eh = &ud->eh;
-
- if (eh->thread == current)
+ if (ud->eh == current)
return; /* do not wait for myself */
- wait_for_completion(&eh->thread_done);
+ kthread_stop(ud->eh);
usbip_dbg_eh("usbip_eh has finished\n");
}
EXPORT_SYMBOL_GPL(usbip_stop_eh);