[lm-sensors] [PATCH] hwmon: (asus_atk0110) Do not fail if MBIF is missing

[Luca Tettamanti]

MBIF (motherboard identification) is only used to print the name of the board,
it's not essential for the driver; do not fail if it's missing.
Based on Juan's patch.

Signed-off-by: Luca Tettamanti <kronos.it at gmail.com>
---
Juan, can sign off the patch?

 drivers/hwmon/asus_atk0110.c |   19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index fe4fa29..0729022 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -921,17 +921,16 @@ static int atk_add(struct acpi_device *device)
 			&buf, ACPI_TYPE_PACKAGE);
 	if (ret != AE_OK) {
 		dev_dbg(&device->dev, "atk: method MBIF not found\n");
-		err = -ENODEV;
-		goto out;
-	}
-
-	obj = buf.pointer;
-	if (obj->package.count >= 2 &&
-			obj->package.elements[1].type == ACPI_TYPE_STRING) {
-		dev_dbg(&device->dev, "board ID = %s\n",
-				obj->package.elements[1].string.pointer);
+	} else {
+		obj = buf.pointer;
+		if (obj->package.count >= 2) {
+			union acpi_object *id = &obj->package.elements[1];
+			if (id->type == ACPI_TYPE_STRING)
+				dev_dbg(&device->dev, "board ID = %s\n",
+					id->string.pointer);
+		}
+		ACPI_FREE(buf.pointer);
 	}
-	ACPI_FREE(buf.pointer);
 
 	/* Check for hwmon methods: first check "old" style methods; note that
 	 * both may be present: in this case we stick to the old interface;