diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-10-21 21:12:15 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-11-02 18:14:07 +0100 |
| commit | e0e398e204634db8fb71bd89cf2f6e3e5bd09b51 (patch) | |
| tree | 249a53f4da79da8a867bcbf33f71df644e9e72c1 /drivers/base/core.c | |
| parent | 3cea11cd5e3b00d91caf0b4730194039b45c5891 (diff) | |
| download | lwn-e0e398e204634db8fb71bd89cf2f6e3e5bd09b51.tar.gz lwn-e0e398e204634db8fb71bd89cf2f6e3e5bd09b51.zip | |
PM: runtime: Drop runtime PM references to supplier on link removal
While removing a device link, drop the supplier device's runtime PM
usage counter as many times as needed to drop all of the runtime PM
references to it from the consumer in addition to dropping the
consumer's link count.
Fixes: baa8809f6097 ("PM / runtime: Optimize the use of device links")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: 5.1+ <stable@vger.kernel.org> # 5.1+
Tested-by: Xiang Chen <chenxiang66@hisilicon.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/core.c')
| -rw-r--r-- | drivers/base/core.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index 78114ddac755..d661ada1518f 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -773,8 +773,7 @@ static void __device_link_del(struct kref *kref) dev_dbg(link->consumer, "Dropping the link to %s\n", dev_name(link->supplier)); - if (link->flags & DL_FLAG_PM_RUNTIME) - pm_runtime_drop_link(link->consumer); + pm_runtime_drop_link(link); list_del_rcu(&link->s_node); list_del_rcu(&link->c_node); @@ -788,8 +787,7 @@ static void __device_link_del(struct kref *kref) dev_info(link->consumer, "Dropping the link to %s\n", dev_name(link->supplier)); - if (link->flags & DL_FLAG_PM_RUNTIME) - pm_runtime_drop_link(link->consumer); + pm_runtime_drop_link(link); list_del(&link->s_node); list_del(&link->c_node); |