diff options
author | Ingo Molnar <mingo@kernel.org> | 2018-06-26 09:02:41 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@kernel.org> | 2018-06-26 09:02:41 +0200 |
commit | f446474889c06883a3879faa0896e2359e812a6b (patch) | |
tree | 95634685d56dd532d1e9b73fbd07ca389296911b /drivers/base/core.c | |
parent | 01bdee64f9cf8e15f998bf52789ed9d0ebdfa621 (diff) | |
parent | 6f0d349d922ba44e4348a17a78ea51b7135965b1 (diff) |
Merge branch 'linus' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/base/core.c')
-rw-r--r-- | drivers/base/core.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index 36622b52e419..df3e1a44707a 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -236,6 +236,13 @@ struct device_link *device_link_add(struct device *consumer, link->rpm_active = true; } pm_runtime_new_link(consumer); + /* + * If the link is being added by the consumer driver at probe + * time, balance the decrementation of the supplier's runtime PM + * usage counter after consumer probe in driver_probe_device(). + */ + if (consumer->links.status == DL_DEV_PROBING) + pm_runtime_get_noresume(supplier); } get_device(supplier); link->supplier = supplier; @@ -255,12 +262,12 @@ struct device_link *device_link_add(struct device *consumer, switch (consumer->links.status) { case DL_DEV_PROBING: /* - * Balance the decrementation of the supplier's - * runtime PM usage counter after consumer probe - * in driver_probe_device(). + * Some callers expect the link creation during + * consumer driver probe to resume the supplier + * even without DL_FLAG_RPM_ACTIVE. */ if (flags & DL_FLAG_PM_RUNTIME) - pm_runtime_get_sync(supplier); + pm_runtime_resume(supplier); link->status = DL_STATE_CONSUMER_PROBE; break; |