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authorIngo Molnar <mingo@elte.hu>2006-07-12 09:03:10 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-12 12:52:55 -0700
commit0f74964627e0ece4ac8da0e2cd01906ec322b4fe (patch)
treea01f8d194ad1d9b3f921826f37b09efaff3a8662 /drivers/char/rio/board.h
parenta29b0b74e73b66674d20a170e463fe9032f2272a (diff)
[PATCH] lockdep: HPET/RTC fix
Joseph Fannin reported that hpet_rtc_interrupt() enables hardirqs in irq context: [ 25.628000] [<c014af4e>] trace_hardirqs_on+0xce/0x200 [ 25.628000] [<c036cf21>] _spin_unlock_irq+0x31/0x70 [ 25.628000] [<c0296584>] rtc_get_rtc_time+0x44/0x1a0 [ 25.628000] [<c01198bb>] hpet_rtc_interrupt+0x21b/0x280 [ 25.628000] [<c0161141>] handle_IRQ_event+0x31/0x70 [ 25.628000] [<c0162d37>] handle_edge_irq+0xe7/0x210 [ 25.628000] [<c0106192>] do_IRQ+0x92/0x120 [ 25.628000] [<c0104121>] common_interrupt+0x25/0x2c the call of rtc_get_rtc_time() is highly suspect. At a minimum we need the patch below to save/restore hardirq state. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Joseph Fannin <jfannin@gmail.com> Cc: John Stultz <johnstul@us.ibm.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char/rio/board.h')
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