diff options
| -rw-r--r-- | drivers/acpi/scan.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 69bc0d888c01..8d40467d37f9 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -375,7 +375,11 @@ bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent) struct acpi_device_physical_node *pn; bool offline = true; - mutex_lock(&adev->physical_node_lock); + /* + * acpi_container_offline() calls this for all of the container's + * children under the container's physical_node_lock lock. + */ + mutex_lock_nested(&adev->physical_node_lock, SINGLE_DEPTH_NESTING); list_for_each_entry(pn, &adev->physical_node_list, node) if (device_supports_offline(pn->dev) && !pn->dev->offline) { |