From: Steffen Maier <[email protected]>

commit d27e5e07f9c49bf2a6a4ef254ce531c1b4fb5a38 upstream.

With this early return due to zfcp_unit child(ren), we don't use the
zfcp_port reference from the earlier zfcp_get_port_by_wwpn() anymore and
need to put it.

Signed-off-by: Steffen Maier <[email protected]>
Fixes: d99b601b6338 ("[SCSI] zfcp: restore refcount check on port_remove")
Cc: <[email protected]> #3.7+
Reviewed-by: Jens Remus <[email protected]>
Reviewed-by: Benjamin Block <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/s390/scsi/zfcp_sysfs.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -263,6 +263,7 @@ static ssize_t zfcp_sysfs_port_remove_st
        if (atomic_read(&port->units) > 0) {
                retval = -EBUSY;
                mutex_unlock(&zfcp_sysfs_port_units_mutex);
+               put_device(&port->dev); /* undo zfcp_get_port_by_wwpn() */
                goto out;
        }
        /* port is about to be removed, so no more unit_add */


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