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| author | Dexuan Cui <decui@microsoft.com> | 2019-04-12 23:34:45 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-10 17:53:08 +0200 |
| commit | 7a01e8154b48e61fe8a232df5325e32cbb015ecf (patch) | |
| tree | cde693a2ee29c53a987480225cc1cb71fbfc935d | |
| parent | 3739f98aea7113a21d11b1a604525049e422e29e (diff) | |
| download | linux-stable-7a01e8154b48e61fe8a232df5325e32cbb015ecf.tar.gz linux-stable-7a01e8154b48e61fe8a232df5325e32cbb015ecf.tar.bz2 linux-stable-7a01e8154b48e61fe8a232df5325e32cbb015ecf.zip | |
Drivers: hv: vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup()
commit a0033bd1eae4650b69be07c17cb87393da584563 upstream.
With CONFIG_DEBUG_PREEMPT=y, the put_cpu_ptr() triggers an underflow
warning in preempt_count_sub().
Fixes: 37cdd991fac8 ("vmbus: put related per-cpu variable together")
Cc: stable@vger.kernel.org
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/hv/hv.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index d8101cd28dfa..fe041f22521d 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -356,7 +356,6 @@ int hv_synic_cleanup(unsigned int cpu) clockevents_unbind_device(hv_cpu->clk_evt, cpu); hv_ce_shutdown(hv_cpu->clk_evt); - put_cpu_ptr(hv_cpu); } hv_get_synint_state(HV_X64_MSR_SINT0 + VMBUS_MESSAGE_SINT, |