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Date: Tue, 25 Aug 2020 09:10:43 +0200 From: Johan Hovold <johan@...nel.org> To: "Xia, Hui" <hui.xia@...el.com> Cc: Johan Hovold <johan@...nel.org>, lkp <lkp@...el.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "kbuild-all@...ts.01.org" <kbuild-all@...ts.01.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: [kbuild-all] Re: drivers/greybus/es2.c:439 message_send() error: double unlocked 'es2->cport_out_urb_lock' (orig line 417) On Tue, Aug 25, 2020 at 02:37:04AM +0000, Xia, Hui wrote: > >-----Original Message----- > >From: Johan Hovold <johan@...nel.org> > >Sent: 2020年8月24日 17:54 > >To: kernel test robot <lkp@...el.com> > >Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>; kbuild-all@...ts.01.org; > >linux-kernel@...r.kernel.org > >Subject: [kbuild-all] Re: drivers/greybus/es2.c:439 message_send() error: double > >unlocked 'es2->cport_out_urb_lock' (orig line 417) > > > >On Fri, Aug 14, 2020 at 03:26:27AM +0800, kernel test robot wrote: > >> Hi Greg, > >> > >> First bad commit (maybe != root cause): > >> > >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > >> head: dc06fe51d26efc100ac74121607c01a454867c91 > >> commit: b81beec9cb2d586412c7166c893894930f19965e staging: greybus: > >move es2 to drivers/greybus/ > >> date: 12 months ago > >> config: x86_64-randconfig-m001-20200813 (attached as .config) > >> compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 > >> > >> If you fix the issue, kindly add following tag as appropriate > >> Reported-by: kernel test robot <lkp@...el.com> > >> > >> New smatch warnings: > >> drivers/greybus/es2.c:439 message_send() error: double unlocked > >> 'es2->cport_out_urb_lock' (orig line 417) > >> drivers/greybus/es2.c:879 cport_out_callback() error: double unlocked > >> 'es2->cport_out_urb_lock' (orig line 871) > >> drivers/greybus/es2.c:1018 arpc_sync() error: double unlocked > >> 'es2->arpc_lock' (orig line 992) > >> > >> Old smatch warnings: > >> drivers/greybus/es2.c:441 message_send() error: double unlocked > >> 'es2->cport_out_urb_lock' (orig line 439) > > > >None of these warnings make any sense. Is the robot drunk? > It is a false positive. Please kindly ignore. > There was a bug in robot that sent unconfident reports out directly > and has been fixed. Sorry for inconvenient. Ok, thanks for confirming. Johan
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