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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-20 08:25:44 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-20 08:25:44 -0700 |
| commit | af52739b922f656eb1f39016fabaabe4baeda2e2 (patch) | |
| tree | 79a7aa810d0493cd0cf4adebac26d37f12e8b545 /drivers/base/power/opp/cpu.c | |
| parent | 25ed6a5e97809129a1bc852b6b5c7d03baa112c4 (diff) | |
| parent | 33688abb2802ff3a230bd2441f765477b94cc89e (diff) | |
| download | talos-obmc-linux-af52739b922f656eb1f39016fabaabe4baeda2e2.tar.gz talos-obmc-linux-af52739b922f656eb1f39016fabaabe4baeda2e2.zip | |
Merge 4.7-rc4 into staging-next
We want the fixes in here, and we can resolve a merge issue in
drivers/iio/industrialio-trigger.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/power/opp/cpu.c')
| -rw-r--r-- | drivers/base/power/opp/cpu.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/base/power/opp/cpu.c b/drivers/base/power/opp/cpu.c index 83d6e7ba1a34..8c3434bdb26d 100644 --- a/drivers/base/power/opp/cpu.c +++ b/drivers/base/power/opp/cpu.c @@ -211,7 +211,7 @@ int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, } /* Mark opp-table as multiple CPUs are sharing it now */ - opp_table->shared_opp = true; + opp_table->shared_opp = OPP_TABLE_ACCESS_SHARED; } unlock: mutex_unlock(&opp_table_lock); @@ -227,7 +227,8 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_set_sharing_cpus); * * This updates the @cpumask with CPUs that are sharing OPPs with @cpu_dev. * - * Returns -ENODEV if OPP table isn't already present. + * Returns -ENODEV if OPP table isn't already present and -EINVAL if the OPP + * table's status is access-unknown. * * Locking: The internal opp_table and opp structures are RCU protected. * Hence this function internally uses RCU updater strategy with mutex locks @@ -249,9 +250,14 @@ int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask) goto unlock; } + if (opp_table->shared_opp == OPP_TABLE_ACCESS_UNKNOWN) { + ret = -EINVAL; + goto unlock; + } + cpumask_clear(cpumask); - if (opp_table->shared_opp) { + if (opp_table->shared_opp == OPP_TABLE_ACCESS_SHARED) { list_for_each_entry(opp_dev, &opp_table->dev_list, node) cpumask_set_cpu(opp_dev->dev->id, cpumask); } else { |
