From 7119e3c37fbf7c27adb5929f344c826ecb8c7859 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 1 May 2008 15:36:13 -0400 Subject: [PATCH] usb-storage: change remaining semaphore to completion This patch (as1090) converts the one remaining semaphore in usb-storage into a completion. Signed-off-by: Alan Stern Cc: Matthew Dharm Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/scsiglue.c | 2 +- drivers/usb/storage/usb.c | 8 ++++---- drivers/usb/storage/usb.h | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 1caf3f7af34..043b60b2ad1 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -248,7 +248,7 @@ static int queuecommand(struct scsi_cmnd *srb, /* enqueue the command and wake up the control thread */ srb->scsi_done = done; us->srb = srb; - up(&(us->sema)); + complete(&us->cmnd_ready); return 0; } diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index 78c0c7ee6b9..6b14f8d253f 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -312,9 +312,9 @@ static int usb_stor_control_thread(void * __us) for(;;) { US_DEBUGP("*** thread sleeping.\n"); - if(down_interruptible(&us->sema)) + if (wait_for_completion_interruptible(&us->cmnd_ready)) break; - + US_DEBUGP("*** thread awakened.\n"); /* lock the device pointers */ @@ -825,7 +825,7 @@ static void usb_stor_release_resources(struct us_data *us) */ US_DEBUGP("-- sending exit command to thread\n"); set_bit(US_FLIDX_DISCONNECTING, &us->dflags); - up(&us->sema); + complete(&us->cmnd_ready); if (us->ctl_thread) kthread_stop(us->ctl_thread); @@ -975,7 +975,7 @@ static int storage_probe(struct usb_interface *intf, us = host_to_us(host); memset(us, 0, sizeof(struct us_data)); mutex_init(&(us->dev_mutex)); - init_MUTEX_LOCKED(&(us->sema)); + init_completion(&us->cmnd_ready); init_completion(&(us->notify)); init_waitqueue_head(&us->delay_wait); init_completion(&us->scanning_done); diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h index b169132f021..8da96da5875 100644 --- a/drivers/usb/storage/usb.h +++ b/drivers/usb/storage/usb.h @@ -148,7 +148,7 @@ struct us_data { struct task_struct *ctl_thread; /* the control thread */ /* mutual exclusion and synchronization structures */ - struct semaphore sema; /* to sleep thread on */ + struct completion cmnd_ready; /* to sleep thread on */ struct completion notify; /* thread begin/end */ wait_queue_head_t delay_wait; /* wait during scan, reset */ struct completion scanning_done; /* wait for scan thread */ -- 2.41.1