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| author | Champion Chen <champion_chen@realsil.com.cn> | 2014-09-06 14:06:08 -0500 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-09-09 03:23:40 +0200 |
| commit | 85560c4a828ec9c8573840c9b66487b6ae584768 (patch) | |
| tree | 1e228a31513dbf5956e30ba8083794331e0728f0 /drivers | |
| parent | e1e930f591bfd9604c3077f0af5c390f4f890259 (diff) | |
| download | linux-stable-85560c4a828ec9c8573840c9b66487b6ae584768.tar.gz linux-stable-85560c4a828ec9c8573840c9b66487b6ae584768.tar.bz2 linux-stable-85560c4a828ec9c8573840c9b66487b6ae584768.zip | |
Bluetooth: Fix issue with USB suspend in btusb driver
Suspend could fail for some platforms because
btusb_suspend==> btusb_stop_traffic ==> usb_kill_anchored_urbs.
When btusb_bulk_complete returns before system suspend and resubmits
an URB, the system cannot enter suspend state.
Signed-off-by: Champion Chen <champion_chen@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/bluetooth/btusb.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 0527b29c3954..a79d657c0845 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -331,6 +331,9 @@ static void btusb_intr_complete(struct urb *urb) BT_ERR("%s corrupted event packet", hdev->name); hdev->stat.err_rx++; } + } else if (urb->status == -ENOENT) { + /* Avoid suspend failed when usb_kill_urb */ + return; } if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) @@ -419,6 +422,9 @@ static void btusb_bulk_complete(struct urb *urb) BT_ERR("%s corrupted ACL packet", hdev->name); hdev->stat.err_rx++; } + } else if (urb->status == -ENOENT) { + /* Avoid suspend failed when usb_kill_urb */ + return; } if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) @@ -513,6 +519,9 @@ static void btusb_isoc_complete(struct urb *urb) hdev->stat.err_rx++; } } + } else if (urb->status == -ENOENT) { + /* Avoid suspend failed when usb_kill_urb */ + return; } if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) |