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Commit 1aa506e4 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
Browse files

libata: fix ata_host_release() free order 



host->ops->host_stop() might access ports.  Free ports after
host_stop.

Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 8ba5e4cb

drivers/ata/libata-core.c

+10 −6
Original line number Diff line number Diff line
@@ -5685,18 +5685,22 @@ static void ata_host_release(struct device *gendev, void *res) 
	for (i = 0; i < host->n_ports; i++) {

		struct ata_port *ap = host->ports[i];



		if (!ap)

			continue;



		if (ap->ops->port_stop)

		if (ap && ap->ops->port_stop)

			ap->ops->port_stop(ap);



		scsi_host_put(ap->scsi_host);

	}



	if (host->ops->host_stop)

		host->ops->host_stop(host);



	for (i = 0; i < host->n_ports; i++) {

		struct ata_port *ap = host->ports[i];



		if (ap)

			scsi_host_put(ap->scsi_host);



		host->ports[i] = NULL;

	}



	dev_set_drvdata(gendev, NULL);

}