[PATCH 6/7] scsi : convert semaphore to mutex in struct class

[Dave Young]

Use mutex instead of semaphore in struct class.

Signed-off-by: Dave Young <hidave.darkstar@xxxxxxxxx> 
---
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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