Messages in this thread Patch in this message | | | Date | Thu, 3 Jan 2008 14:01:00 +0800 | From | Dave Young <> | Subject | [PATCH 6/7] scsi : convert semaphore to mutex in struct class |
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Use mutex instead of semaphore in struct class.
Signed-off-by: Dave Young <hidave.darkstar@gmail.com> --- drivers/scsi/hosts.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff -upr linux/drivers/scsi/hosts.c linux.new/drivers/scsi/hosts.c --- linux/drivers/scsi/hosts.c 2007-12-28 10:45:46.000000000 +0800 +++ linux.new/drivers/scsi/hosts.c 2007-12-28 10:46:19.000000000 +0800 @@ -441,7 +441,7 @@ struct Scsi_Host *scsi_host_lookup(unsig struct class_device *cdev; struct Scsi_Host *shost = ERR_PTR(-ENXIO), *p; - down(&class->sem); + mutex_lock(&class->mutex); list_for_each_entry(cdev, &class->children, node) { p = class_to_shost(cdev); if (p->host_no == hostnum) { @@ -449,7 +449,7 @@ struct Scsi_Host *scsi_host_lookup(unsig break; } } - up(&class->sem); + mutex_unlock(&class->mutex); return shost; }
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