Commit f900bffe authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'ata-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata 

Pull ata fixes from Damien Le Moal:

 - Two fixes from Ondrej for the pata_parport driver to address an issue
   with error handling during drive connection and to fix memory leaks
   in case of errors during initialization and when disconnecting a
   device.

* tag 'ata-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata: pata_parport: fix memory leaks
  ata: pata_parport: fix parport release without claim
parents efbcbb12 5bc9e2d4

drivers/ata/pata_parport/pata_parport.c

+17 −13
Original line number Diff line number Diff line
@@ -381,6 +381,7 @@ static void pata_parport_dev_release(struct device *dev) 
{

	struct pi_adapter *pi = container_of(dev, struct pi_adapter, dev);



	ida_free(&pata_parport_bus_dev_ids, dev->id);

	kfree(pi);

}
@@ -433,23 +434,27 @@ static struct pi_adapter *pi_init_one(struct parport *parport, 
	if (bus_for_each_dev(&pata_parport_bus_type, NULL, &match, pi_find_dev))

		return NULL;



	id = ida_alloc(&pata_parport_bus_dev_ids, GFP_KERNEL);

	if (id < 0)

		return NULL;



	pi = kzalloc(sizeof(struct pi_adapter), GFP_KERNEL);

	if (!pi)

	if (!pi) {

		ida_free(&pata_parport_bus_dev_ids, id);

		return NULL;

	}



	/* set up pi->dev before pi_probe_unit() so it can use dev_printk() */

	pi->dev.parent = &pata_parport_bus;

	pi->dev.bus = &pata_parport_bus_type;

	pi->dev.driver = &pr->driver;

	pi->dev.release = pata_parport_dev_release;

	id = ida_alloc(&pata_parport_bus_dev_ids, GFP_KERNEL);

	if (id < 0)

		return NULL; /* pata_parport_dev_release will do kfree(pi) */

	pi->dev.id = id;

	dev_set_name(&pi->dev, "pata_parport.%u", pi->dev.id);

	if (device_register(&pi->dev)) {

		put_device(&pi->dev);

		goto out_ida_free;

		/* pata_parport_dev_release will do ida_free(dev->id) and kfree(pi) */

		return NULL;

	}



	pi->proto = pr;
@@ -464,8 +469,7 @@ static struct pi_adapter *pi_init_one(struct parport *parport, 
	pi->port = parport->base;



	par_cb.private = pi;

	pi->pardev = parport_register_dev_model(parport, DRV_NAME, &par_cb,

						pi->dev.id);

	pi->pardev = parport_register_dev_model(parport, DRV_NAME, &par_cb, id);

	if (!pi->pardev)

		goto out_module_put;
@@ -487,12 +491,13 @@ static struct pi_adapter *pi_init_one(struct parport *parport, 


	pi_connect(pi);

	if (ata_host_activate(host, 0, NULL, 0, &pata_parport_sht))

		goto out_unreg_parport;

		goto out_disconnect;



	return pi;



out_unreg_parport:

out_disconnect:

	pi_disconnect(pi);

out_unreg_parport:

	parport_unregister_device(pi->pardev);

	if (pi->proto->release_proto)

		pi->proto->release_proto(pi);
@@ -500,8 +505,7 @@ static struct pi_adapter *pi_init_one(struct parport *parport, 
	module_put(pi->proto->owner);

out_unreg_dev:

	device_unregister(&pi->dev);

out_ida_free:

	ida_free(&pata_parport_bus_dev_ids, pi->dev.id);

	/* pata_parport_dev_release will do ida_free(dev->id) and kfree(pi) */

	return NULL;

}
@@ -626,8 +630,7 @@ static void pi_remove_one(struct device *dev) 
	pi_disconnect(pi);

	pi_release(pi);

	device_unregister(dev);

	ida_free(&pata_parport_bus_dev_ids, dev->id);

	/* pata_parport_dev_release will do kfree(pi) */

	/* pata_parport_dev_release will do ida_free(dev->id) and kfree(pi) */

}



static ssize_t delete_device_store(struct bus_type *bus, const char *buf,
@@ -643,6 +646,7 @@ static ssize_t delete_device_store(struct bus_type *bus, const char *buf, 
	}



	pi_remove_one(dev);

	put_device(dev);

	mutex_unlock(&pi_mutex);



	return count;