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(parent: 9c03439) | patch
PM / Runtime: fix recursive locking warning of lockdep from rpm_resume()
authorMing Lei <tom.leiming@gmail.com>
Fri, 22 Oct 2010 21:48:14 +0000 (23:48 +0200)
committerRafael J. Wysocki <rjw@sisk.pl>
Fri, 22 Oct 2010 21:48:14 +0000 (23:48 +0200)
commitd63be5f924cf054e7ac18bb2761f9533039fb076
tree6db8b10599ad992de452f7b6193e02c75c9296e3tree | snapshot (tar.gz zip)
parent9c034392533f3e9f00656d5c58478cff2560ef81commit | diff
PM / Runtime: fix recursive locking warning of lockdep from rpm_resume()

For device with no_callbacks flag set, its power lock and its parent's
power lock may be held nestedly in rpm_resume, so we should take
spin_lock_nested(lock, SINGLE_DEPTH_NESTING) to acquire parent power lock
to avoid lockdep warning.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
drivers/base/power/runtime.c diff | blob | blame | history