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) | |||
| 375 | struct acpi_device_physical_node *pn; | 375 | struct acpi_device_physical_node *pn; |
| 376 | bool offline = true; | 376 | bool offline = true; |
| 377 | 377 | ||
| 378 | mutex_lock(&adev->physical_node_lock); | 378 | /* |
| 379 | * acpi_container_offline() calls this for all of the container's | ||
| 380 | * children under the container's physical_node_lock lock. | ||
| 381 | */ | ||
| 382 | mutex_lock_nested(&adev->physical_node_lock, SINGLE_DEPTH_NESTING); | ||
| 379 | 383 | ||
| 380 | list_for_each_entry(pn, &adev->physical_node_list, node) | 384 | list_for_each_entry(pn, &adev->physical_node_list, node) |
| 381 | if (device_supports_offline(pn->dev) && !pn->dev->offline) { | 385 | if (device_supports_offline(pn->dev) && !pn->dev->offline) { |