diff mbox

[v3,02/17] ACPI: add debug for device addition

Message ID 20090921192854.21322.14281.stgit@bob.kio (mailing list archive)
State Accepted
Headers show

Commit Message

Bjorn Helgaas Sept. 21, 2009, 7:28 p.m. UTC 
Add debug output for adding an ACPI device.  Enable this with
"acpi.debug_layer=0x00010000" (ACPI_BUS_COMPONENT).

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
---
 drivers/acpi/scan.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)


--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 408ebde..75b7c57 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1230,6 +1230,7 @@  acpi_add_single_object(struct acpi_device **child,
 {
 	int result = 0;
 	struct acpi_device *device = NULL;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 
 
 	if (!child)
@@ -1355,9 +1356,16 @@  acpi_add_single_object(struct acpi_device **child,
 	}
 
 end:
-	if (!result)
+	if (!result) {
+		acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+			"Adding %s [%s] parent %s\n", dev_name(&device->dev),
+			 (char *) buffer.pointer,
+			 device->parent ? dev_name(&device->parent->dev) :
+					  "(null)"));
+		kfree(buffer.pointer);
 		*child = device;
-	else
+	} else
 		acpi_device_release(&device->dev);
 
 	return result;