[PATCH 06/15] hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels()

[KY Srinivasan]

> -----Original Message-----
> From: Greg KH [mailto:gregkh at linuxfoundation.org]
> Sent: Thursday, December 1, 2016 12:37 PM
> To: KY Srinivasan <kys at microsoft.com>
> Cc: linux-kernel at vger.kernel.org; devel at linuxdriverproject.org;
> olaf at aepfle.de; apw at canonical.com; vkuznets at redhat.com;
> jasowang at redhat.com; leann.ogasawara at canonical.com
> Subject: Re: [PATCH 06/15] hv: acquire vmbus_connection.channel_mutex in
> vmbus_free_channels()
> 
> On Thu, Dec 01, 2016 at 09:28:43AM -0800, kys at exchange.microsoft.com
> wrote:
> > From: Vitaly Kuznetsov <vkuznets at redhat.com>
> >
> > "kernel BUG at drivers/hv/channel_mgmt.c:350!" is observed when
> hv_vmbus
> > module is unloaded. BUG_ON() was introduced in commit 85d9aa705184
> > ("Drivers: hv: vmbus: add an API vmbus_hvsock_device_unregister()") as
> > vmbus_free_channels() codepath was apparently forgotten.
> >
> > Fixes: 85d9aa705184 ("Drivers: hv: vmbus: add an API
> vmbus_hvsock_device_unregister()")
> > Signed-off-by: Vitaly Kuznetsov <vkuznets at redhat.com>
> > Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>
> > ---
> >  drivers/hv/channel_mgmt.c |    2 ++
> >  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> Shouldn't this go to stable kernels?

Yes; I will resubmit.

Regards,

K. Y