From: Dexuan Cui decui@microsoft.com
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
--- drivers/hv/hv.c | 1 - 1 file changed, 1 deletion(-)
--- 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,