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If vBIOS noFan bit is set, the fan table parameters in thermal controller will not get initialized. The driver should avoid to use these uninitialized parameter to do calculation. Otherwise, it may trigger divide 0 error. Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org