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| author | Dave Airlie <airlied@redhat.com> | 2013-08-19 13:49:20 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-08-19 13:49:20 +1000 |
| commit | 3387ed83943daf6cb1bb4195ae369067b9cd80ce (patch) | |
| tree | e9fc247ed3a26f5369a7ec1b1bd0ef66bda7b4dd /drivers/acpi/proc.c | |
| parent | eb91626ac4b9af3d5602a7db888b8bc4cb23eb3b (diff) | |
| parent | 63b66e5ba54b15a6592be00555d762db6db739ce (diff) | |
| download | linux-3387ed83943daf6cb1bb4195ae369067b9cd80ce.tar.gz linux-3387ed83943daf6cb1bb4195ae369067b9cd80ce.tar.xz | |
Merge tag 'drm-intel-fixes-2013-08-15' of git://people.freedesktop.org/~danvet/drm-intel
* tag 'drm-intel-fixes-2013-08-15' of git://people.freedesktop.org/~danvet/drm-intel: (153 commits)
drm/i915: Don't deref pipe->cpu_transcoder in the hangcheck code
Diffstat (limited to 'drivers/acpi/proc.c')
| -rw-r--r-- | drivers/acpi/proc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c index aa1227a7e3f2..04a13784dd20 100644 --- a/drivers/acpi/proc.c +++ b/drivers/acpi/proc.c @@ -311,6 +311,8 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset) dev->pnp.bus_id, (u32) dev->wakeup.sleep_state); + mutex_lock(&dev->physical_node_lock); + if (!dev->physical_node_count) { seq_printf(seq, "%c%-8s\n", dev->wakeup.flags.run_wake ? '*' : ' ', @@ -338,6 +340,8 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset) put_device(ldev); } } + + mutex_unlock(&dev->physical_node_lock); } mutex_unlock(&acpi_device_lock); return 0; @@ -347,12 +351,16 @@ static void physical_device_enable_wakeup(struct acpi_device *adev) { struct acpi_device_physical_node *entry; + mutex_lock(&adev->physical_node_lock); + list_for_each_entry(entry, &adev->physical_node_list, node) if (entry->dev && device_can_wakeup(entry->dev)) { bool enable = !device_may_wakeup(entry->dev); device_set_wakeup_enable(entry->dev, enable); } + + mutex_unlock(&adev->physical_node_lock); } static ssize_t |