From: Johan Hovold <johan@xxxxxxxxxx>
This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.
===============
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@xxxxxxxxxx>
Tested-by: Ed Butler <ressy66@xxxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/usb/serial/option.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 9da566a3f5c8..240c0739eefb 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1917,6 +1917,8 @@ static void option_instat_callback(struct urb *urb)
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);
--
2.1.1
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