cpuidle: Fix panic in CPU off-lining with no idle driver
Fix a NULL pointer dereference panic in cpuidle_play_dead() during CPU off-lining when no cpuidle driver is registered. A cpuidle driver may be registered at boot-time based on CPU type. This patch allows an off-lined CPU to enter HLT-based idle in this condition. Signed-off-by:Toshi Kani <toshi.kani@hp.com> Cc: Boris Ostrovsky <boris.ostrovsky@amd.com> Reviewed-by:
Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Tested-by:
Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by:
Len Brown <len.brown@intel.com>
parent
54f70077
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