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[SCSI] fix /proc memory leak in the SCSI core 

The SCSI core calls scsi_proc_hostdir_add() from within
scsi_host_alloc(), but the corresponding scsi_proc_hostdir_rm()
routine is called from within scsi_remove_host().  As a result, if a
host is allocated and then deallocated without ever being registered,
the host's directory in /proc is leaked.

This patch (as1181b) fixes this bug in the SCSI core by moving
scsi_proc_hostdir_rm() into scsi_host_dev_release().

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
hifive-unleashed-5.1
Alan Stern 2009-02-27 16:51:42 -05:00 committed by James Bottomley
parent 058bb82c56
commit 77c019768f
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/hosts.c
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@ -176,7 +176,6 @@ void scsi_remove_host(struct Scsi_Host *shost)
transport_unregister_device(&shost->shost_gendev);
device_unregister(&shost->shost_dev);
device_del(&shost->shost_gendev);
scsi_proc_hostdir_rm(shost->hostt);
}
EXPORT_SYMBOL(scsi_remove_host);
@ -270,6 +269,8 @@ static void scsi_host_dev_release(struct device *dev)
struct Scsi_Host *shost = dev_to_shost(dev);
struct device *parent = dev->parent;
scsi_proc_hostdir_rm(shost->hostt);
if (shost->ehandler)
kthread_stop(shost->ehandler);
if (shost->work_q)