| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 076/238] USB: option: reduce interrupt-urb logging verbosity | Date | Fri, 3 Oct 2014 14:29:51 -0700 |
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3.14-stable review patch. If anyone has any objections, please let me know.
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From: Johan Hovold <johan@kernel.org>
commit f0e4cba2534cd88476dff920727c81350130f3c5 upstream.
Do not log normal interrupt-urb shutdowns as errors.
The option driver has always been logging any nonzero interrupt-urb status as an error, including when the urb is killed during normal operation.
Commit 9096f1fbba91 ("USB: usb_wwan: fix potential NULL-deref at resume") moved the interrupt urb submission from port probe and release to open and close, thus potentially increasing the number of these false-positive error messages dramatically.
Reported-by: Ed Butler <ressy66@ausics.net> Tested-by: Ed Butler <ressy66@ausics.net> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/usb/serial/option.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1917,6 +1917,8 @@ static void option_instat_callback(struc dev_dbg(dev, "%s: type %x req %x\n", __func__, req_pkt->bRequestType, req_pkt->bRequest); } + } else if (status == -ENOENT || status == -ESHUTDOWN) { + dev_dbg(dev, "%s: urb stopped: %d\n", __func__, status); } else dev_err(dev, "%s: error %d\n", __func__, status);
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