MyungJoo Ham 28c22d7dc9 ARM: 6490/1: MM: bugfix: initialize spinlock for init_mm.context ... init_mm used at kernel/sched.c:idle_task_exit() has spin_lock (init_mm.context.id_lock) that is not initialized when spin_lock/unlock is called at an ARM machine. Note that mm_struct.context.id_lock is usually initialized except for the instance of init_mm at linux/arch/arm/mm/context.c Not initializing this spinlock incurs "BUG: pinlock bad magic" warning when spinlock debug is enabled. We have observed such instances when testing PM in S5PC210 machines. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>		2010-11-23 22:46:12 +00:00
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asm	ARM: 6490/1: MM: bugfix: initialize spinlock for init_mm.context	2010-11-23 22:46:12 +00:00