Bluetooth: btbcm: allow btbcm_read_verbose_config to fail on Apple

Commit 1c8ba6d013 moved around the setup code for broadcomm chips,
and also added btbcm_read_verbose_config() to read extra information
about the hardware.  It's returning errors on some macbooks:

Bluetooth: hci0: BCM: Read verbose config info failed (-16)

Which makes us error out of the setup function.  Since this
probe isn't critical to operate the chip, this patch just changes
things to carry on when it fails.

Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org # v4.1

diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
index 1e1a432..9ceb8ac 100644 (file)
--- a/drivers/bluetooth/btbcm.c
+++ b/drivers/bluetooth/btbcm.c
@@ -472,12 +472,11 @@ int btbcm_setup_apple(struct hci_dev *hdev)
 
        /* Read Verbose Config Version Info */
        skb = btbcm_read_verbose_config(hdev);
-       if (IS_ERR(skb))
-               return PTR_ERR(skb);
-
-       BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name, skb->data[1],
-               get_unaligned_le16(skb->data + 5));
-       kfree_skb(skb);
+       if (!IS_ERR(skb)) {
+               BT_INFO("%s: BCM: chip id %u build %4.4u", hdev->name, skb->data[1],
+                       get_unaligned_le16(skb->data + 5));
+               kfree_skb(skb);
+       }
 
        set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);