tree d53a2a9a3635092f289b66dabcbac0fbcefe8d50
parent c4bb3160c8823d3a1e581d7e05fb8b343097e7c8
author Rafael J. Wysocki <rjw@sisk.pl> 1312839794 +0200
committer Rafael J. Wysocki <rjw@sisk.pl> 1314279223 +0200

PM / Domains: Do not take parent locks to modify subdomain counters

After the subdomain counter in struct generic_pm_domain has been
changed into an atomic_t field, it is possible to modify
pm_genpd_poweron() and pm_genpd_poweroff() so that they don't take
the parents locks.  This requires pm_genpd_poweron() to increment
the parent's subdomain counter before calling itself recursively
for the parent and to decrement it if an error is to be returned.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>