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target/pscsi: Don't leak scsi_host if hba is VIRTUAL_HOST

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See https://bugzilla.redhat.com/show_bug.cgi?id=1025672

We need to put() the reference to the scsi host that we got in
pscsi_configure_device(). In VIRTUAL_HOST mode it is associated with
the dev_virt, not the hba_virt.

Signed-off-by: Andy Grover <agrover@redhat.com>
Cc: stable@vger.kernel.org # 2.6.38+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Andy Grover 2015-05-22 14:07:44 -07:00 committed by Nicholas Bellinger
parent d588cf8f61
commit 5a7125c64d
2 changed files with 4 additions and 0 deletions
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3
drivers/target/target_core_pscsi.c
View File

@ -521,6 +521,7 @@ static int pscsi_configure_device(struct se_device *dev)
" pdv_host_id: %d\n", pdv->pdv_host_id);
return -EINVAL;
}
pdv->pdv_lld_host = sh;
}
} else {
if (phv->phv_mode == PHV_VIRTUAL_HOST_ID) {
@ -603,6 +604,8 @@ static void pscsi_free_device(struct se_device *dev)
if ((phv->phv_mode == PHV_LLD_SCSI_HOST_NO) &&
(phv->phv_lld_host != NULL))
scsi_host_put(phv->phv_lld_host);
else if (pdv->pdv_lld_host)
scsi_host_put(pdv->pdv_lld_host);
if ((sd->type == TYPE_DISK) || (sd->type == TYPE_ROM))
scsi_device_put(sd);

1
drivers/target/target_core_pscsi.h
View File

@ -45,6 +45,7 @@ struct pscsi_dev_virt {
int pdv_lun_id;
struct block_device *pdv_bd;
struct scsi_device *pdv_sd;
struct Scsi_Host *pdv_lld_host;
} ____cacheline_aligned;
typedef enum phv_modes {