Drivers: hv: vmbus: Fix crash handler reset of Hyper-V synic
The crash handler calls hv_synic_cleanup() to shutdown the Hyper-V synthetic interrupt controller. But if the CPU that calls hv_synic_cleanup() has a VMbus channel interrupt assigned to it (which is likely the case in smaller VM sizes), hv_synic_cleanup() returns an error and the synthetic interrupt controller isn't shutdown. While the lack of being shutdown hasn't caused a known problem, it still should be fixed for highest reliability. So directly call hv_synic_disable_regs() instead of hv_synic_cleanup(), which ensures that the synic is always shutdown. Signed-off-by:Michael Kelley <mikelley@microsoft.com> Reviewed-by:
Vitaly Kuznetsov <vkuznets@redhat.com> Reviewed-by:
Dexuan Cui <decui@microsoft.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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