1 files changed, 3 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S
index 0d8712a835d2..72dac0b58061 100644
--- a/arch/powerpc/kernel/idle_book3s.S
+++ b/arch/powerpc/kernel/idle_book3s.S
@@ -90,6 +90,7 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_300)
  * Threads will spin in HMT_LOW until the lock bit is cleared.
  * r14 - pointer to core_idle_state
  * r15 - used to load contents of core_idle_state
+ * r9  - used as a temporary variable
  */
 
 core_idle_lock_held:
@@ -99,6 +100,8 @@ core_idle_lock_held:
         bne     3b
         HMT_MEDIUM
         lwarx   r15,0,r14
+        andi.   r9,r15,PNV_CORE_IDLE_LOCK_BIT
+        bne     core_idle_lock_held
         blr
 
 /*