On 2016/10/12 20:52, Paul Bolle wrote: > Zefan Li, > > On Wed, 2016-10-12 at 20:33 +0800, l...@kernel.org wrote: >> When shutting down the device, the struct ser_cardstate must not be >> kfree()d immediately after the call to platform_device_unregister() >> since the embedded struct platform_device is still in use. >> Move the kfree() call to the release method instead. >> >> Signed-off-by: Tilman Schmidt <til...@imap.cc> >> Fixes: 2869b23e4b95 ("drivers/isdn/gigaset: new M101 driver (v2)") >> Reported-by: Sasha Levin <sasha.le...@oracle.com> >> Signed-off-by: Paul Bolle <pebo...@tiscali.nl> >> Signed-off-by: David S. Miller <da...@davemloft.net> >> Signed-off-by: Zefan Li <lize...@huawei.com> > > There has been a follow up for this fix. I'll have to dive into my > archive to see why that was needed. > > It was complicated, because there has been a short period in which this > fix was correct. Something like that, I'm speaking from memory. > (Perhaps Tilman's memory is less imperfect.) > > I'll try get back to this shortly (in a day or so). >
Thanks for looking into this.