linux-kernel - [48/73] Bluetooth: fix crash with quirky dongles doing sound

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Date:	Fri, 04 Mar 2011 16:55:53 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Oliver Neukum <oneukum@...e.de>,
	"Gustavo F. Padovan" <padovan@...fusion.mobi>
Subject: [48/73] Bluetooth: fix crash with quirky dongles doing sound

2.6.37-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Oliver Neukum <oneukum@...e.de>

commit 8efdd0cdc54f3bb5db464b3baf88f7441f54da47 upstream.

Quirky dongles sometimes do not use the iso interface which
causes a crash with runtime PM

Signed-off-by: Oliver Neukum <oneukum@...e.de>
Signed-off-by: Gustavo F. Padovan <padovan@...fusion.mobi>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/bluetooth/btusb.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -829,7 +829,7 @@ static void btusb_work(struct work_struc
 
 	if (hdev->conn_hash.sco_num > 0) {
 		if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
-			err = usb_autopm_get_interface(data->isoc);
+			err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 			if (err < 0) {
 				clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 				usb_kill_anchored_urbs(&data->isoc_anchor);
@@ -858,7 +858,7 @@ static void btusb_work(struct work_struc
 
 		__set_isoc_interface(hdev, 0);
 		if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
-			usb_autopm_put_interface(data->isoc);
+			usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 	}
 }
 


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