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authorAlan Stern <stern@rowland.harvard.edu>2006-09-18 16:28:06 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-25 21:08:40 -0700
commit7e9f4b2d3e21e87c26025810413ef1592834e63b (patch)
tree8fa28b786420fede1f3b656ee21289cc4927c6b2 /kernel/power
parent81107bf531d2524afbcd61f3b4ad57a71295d591 (diff)
Driver core: Don't call put methods while holding a spinlock
The klist utility routines currently call _put methods while holding a spinlock. This is of course illegal; a put routine could try to unregister a device and hence need to sleep. No problems have arisen until now because in many cases klist removals were done synchronously, so the _put methods were never actually used. In other cases we may simply have been lucky. This patch (as784) reworks the klist routines so that _put methods are called only _after_ the klist's spinlock has been released. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel/power')
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