Messages in this thread Patch in this message | | | Date | Fri, 10 Jun 2022 08:40:33 +0000 | From | Wei Liu <> | Subject | Re: [PATCH] Drivers: hv: vmbus: Release cpu lock in error case |
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On Thu, Jun 09, 2022 at 05:39:06PM +0000, Michael Kelley (LINUX) wrote: > From: Saurabh Sengar <ssengar@linux.microsoft.com> Sent: Thursday, June 9, 2022 10:17 AM > > > > In case of invalid sub channel, release cpu lock before returning. > > > > Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com> > > --- > > drivers/hv/channel_mgmt.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c > > index 280b529..5b12040 100644 > > --- a/drivers/hv/channel_mgmt.c > > +++ b/drivers/hv/channel_mgmt.c > > @@ -639,6 +639,7 @@ static void vmbus_process_offer(struct vmbus_channel > > *newchannel) > > */ > > if (newchannel->offermsg.offer.sub_channel_index == 0) { > > mutex_unlock(&vmbus_connection.channel_mutex); > > + cpus_read_unlock(); > > /* > > * Don't call free_channel(), because newchannel->kobj > > * is not initialized yet. > > -- > > 1.8.3.1 > > Reviewed-by: Michael Kelley <mikelley@microsoft.com> >
The bug comes from a949e86c0d780.
Added a Fixes tag and applied to hyperv-fixes. Thanks.
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