On Mon, Nov 25, 2013 at 01:19:01PM +0100, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > > After commit bcdde7e221a8 (sysfs: make __sysfs_remove_dir() recursive) > Mika Westerberg sees traces analogous to the one below in Thunderbolt > hot-remove testing: ... > The source of this problem is that SCSI hosts are removed from > ATA ports after calling ata_tport_delete() which removes the > port's sysfs directory, among other things. Now, after commit > bcdde7e221a8, the sysfs directory is removed along with all of > its subdirectories that include the SCSI host's sysfs directory > and its subdirectories at this point. Consequently, when > device_del() is finally called for any child device of the SCSI > host and tries to remove its "power" group (which is already > gone then), it triggers the above warning. > > To make the warnings go away, change the removal ordering in > ata_port_detach() so that the SCSI host is removed from the > port before ata_tport_delete() is called. > > References: https://bugzilla.kernel.org/show_bug.cgi?id=65281 > Reported-and-tested-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> Applied to libata/for-3.13-fixes. Thanks! -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
