Commit 62de6e0a authored Apr 21, 2016 by Viresh Kumar Committed by Greg Kroah-Hartman Apr 21, 2016

greybus: es2: don't protest when getting -ENOENT/ESHUTDOWN USB errors



-ENOENT or -ESHUTDOWN happens when the urbs are being killed from
->disconnect() callback.  Don't complain to userspace about this, as the
user will see this on es2 module removal.

Tested by removing the gb-es2.ko module on both EVT1.5 and qemu with
gbsim. The driver doesn't throw anymore errors like:
"urb cport in error -2 (dropped)".

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: David Lin <dtwlin@google.com>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

parent ecdd3a2d

drivers/staging/greybus/es2.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -715,6 +715,11 @@ static void cport_in_callback(struct urb *urb)
		if (status) {
		if ((status == -EAGAIN) \|\| (status == -EPROTO))
		goto exit;

		/* The urb is being unlinked */
		if (status == -ENOENT \|\| status == -ESHUTDOWN)
		return;

		dev_err(dev, "urb cport in error %d (dropped)\n", status);
		return;
		}

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