Re: [PATCH] tty: n_gsm: avoid recursive locking with async port hangup

2019-09-19 Thread Martin Hundebøll
On 04/09/2019 10.18, Jiri Slaby wrote: On 29. 08. 19, 21:42, Martin Hundebøll wrote: On 22/08/2019 23.56, Martin Hundebøll wrote: When tearing down the n_gsm ldisc while one or more of its child ports are open, a lock dep warning occurs: [   56.254258]

Re: [PATCH] tty: n_gsm: avoid recursive locking with async port hangup

2019-09-04 Thread Jiri Slaby
On 29. 08. 19, 21:42, Martin Hundebøll wrote: > On 22/08/2019 23.56, Martin Hundebøll wrote: >> When tearing down the n_gsm ldisc while one or more of its child ports >> are open, a lock dep warning occurs: >> >> [   56.254258] == >> [   56.26044

Re: [PATCH] tty: n_gsm: avoid recursive locking with async port hangup

2019-09-04 Thread Greg Kroah-Hartman
On Thu, Aug 29, 2019 at 09:42:31PM +0200, Martin Hundebøll wrote: > On 22/08/2019 23.56, Martin Hundebøll wrote: > > When tearing down the n_gsm ldisc while one or more of its child ports > > are open, a lock dep warning occurs: > > > > [ 56.254258] ==

Re: [PATCH] tty: n_gsm: avoid recursive locking with async port hangup

2019-08-29 Thread Martin Hundebøll
On 22/08/2019 23.56, Martin Hundebøll wrote: When tearing down the n_gsm ldisc while one or more of its child ports are open, a lock dep warning occurs: [ 56.254258] == [ 56.260447] WARNING: possible circular locking dependency detected [

[PATCH] tty: n_gsm: avoid recursive locking with async port hangup

2019-08-22 Thread Martin Hundebøll
When tearing down the n_gsm ldisc while one or more of its child ports are open, a lock dep warning occurs: [ 56.254258] == [ 56.260447] WARNING: possible circular locking dependency detected [ 56.266641] 5.2.0-00118-g1fd58e20e5b0 #30 Not t