Commit 9c770108 authored by Dave Young's avatar Dave Young Committed by Greg Kroah-Hartman
Browse files

scsi: use class iteration api 



Convert to use the class iteration api.

Signed-off-by: default avatarDave Young <hidave.darkstar@gmail.com>
Cc: James Bottomley <James.Bottomley@hansenpartnership.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 71da8905

drivers/scsi/hosts.c

+13 −11
Original line number Diff line number Diff line
@@ -429,6 +429,15 @@ void scsi_unregister(struct Scsi_Host *shost) 
}

EXPORT_SYMBOL(scsi_unregister);



static int __scsi_host_match(struct class_device *cdev, void *data)

{

	struct Scsi_Host *p;

	unsigned short *hostnum = (unsigned short *)data;



	p = class_to_shost(cdev);

	return p->host_no == *hostnum;

}



/**

 * scsi_host_lookup - get a reference to a Scsi_Host by host no

 *
@@ -439,19 +448,12 @@ EXPORT_SYMBOL(scsi_unregister); 
 **/

struct Scsi_Host *scsi_host_lookup(unsigned short hostnum)

{

	struct class *class = &shost_class;

	struct class_device *cdev;

	struct Scsi_Host *shost = ERR_PTR(-ENXIO), *p;

	struct Scsi_Host *shost = ERR_PTR(-ENXIO);



	down(&class->sem);

	list_for_each_entry(cdev, &class->children, node) {

		p = class_to_shost(cdev);

		if (p->host_no == hostnum) {

			shost = scsi_host_get(p);

			break;

		}

	}

	up(&class->sem);

	cdev = class_find_child(&shost_class, &hostnum, __scsi_host_match);

	if (cdev)

		shost = scsi_host_get(class_to_shost(cdev));



	return shost;

}