usb_submit_urb() returns -ENODEV when a usb device is disconnected. In
commit 4935f1c164ac528dff3538f97953b385ba500710 ("Bluetooth: btusb: be
quiet on device disconnect") I stopped treating that return as an error
in the three btusb_*_complete() functions.
It turns out btusb_send_frame() generates a similar error if the system
is suspended while the bluetooth usb device is enabled. The sensible
thing to do here seems to be to treat -ENODEV (and -EPERM) just like the
btusb_*_complete() functions now do.
Signed-off-by: Paul Bolle <pebolle@xxxxxxxxxx>
---
drivers/bluetooth/btusb.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 9cbac6b..3d1afe7 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -765,7 +765,9 @@ skip_waking:
err = usb_submit_urb(urb, GFP_ATOMIC);
if (err < 0) {
- BT_ERR("%s urb %p submission failed", hdev->name, urb);
+ if (err != -EPERM && err != -ENODEV)
+ BT_ERR("%s urb %p submission failed (%d)",
+ hdev->name, urb, -err);
kfree(urb->setup_packet);
usb_unanchor_urb(urb);
} else {
--
1.7.4.4
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