From 7a01e8154b48e61fe8a232df5325e32cbb015ecf Mon Sep 17 00:00:00 2001 From: Dexuan Cui Date: Fri, 12 Apr 2019 23:34:45 +0000 Subject: [PATCH] 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 Signed-off-by: Dexuan Cui Reviewed-by: Michael Kelley Signed-off-by: Sasha Levin (Microsoft) Signed-off-by: Greg Kroah-Hartman --- drivers/hv/hv.c | 1 - 1 file changed, 1 deletion(-) 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,