From: Jeremiah Mahler <jmmahler@gmail.com>
To: Johan Hovold <johan@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
Jeremiah Mahler <jmmahler@gmail.com>
Subject: [RESEND PATCH v2 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb
Date: Sat, 10 Jan 2015 16:44:33 -0800 [thread overview]
Message-ID: <1420937073-20835-3-git-send-email-jmmahler@gmail.com> (raw)
In-Reply-To: <1420937073-20835-1-git-send-email-jmmahler@gmail.com>
In-Reply-To: <1419066698-2684-1-git-send-email-jmmahler@gmail.com>
If a USB serial device (e.g. /dev/ttyUSB0) with an active program is
unplugged, an -ENODEV (19) error will be produced after it gives up
trying to resubmit a read.
usb_serial_generic_submit_read_urb - usb_submit_urb failed: -19
Add -ENODEV as one of the permanent errors along with -EPERM that
usb_serial_generic_submit_read_urb() handles quietly without an error.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
---
drivers/usb/serial/generic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 2d7207b..ccf1df7 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -286,7 +286,7 @@ static int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
res = usb_submit_urb(port->read_urbs[index], mem_flags);
if (res) {
- if (res != -EPERM) {
+ if (res != -EPERM && res != -ENODEV) {
dev_err(&port->dev,
"%s - usb_submit_urb failed: %d\n",
__func__, res);
--
2.1.4
next prev parent reply other threads:[~2015-01-11 0:45 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-11 23:29 [PATCH 0/2] usb: serial: handle -ENODEV and -EPROTO quietly Jeremiah Mahler
2014-12-11 23:29 ` [PATCH 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk Jeremiah Mahler
2014-12-11 23:29 ` [PATCH 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2014-12-16 11:49 ` Johan Hovold
2014-12-15 10:23 ` [PATCH 0/2] usb: serial: handle -ENODEV and -EPROTO quietly Johan Hovold
2014-12-15 12:53 ` Jeremiah Mahler
2014-12-15 16:38 ` Greg Kroah-Hartman
2014-12-16 7:10 ` Jeremiah Mahler
2014-12-16 11:46 ` Johan Hovold
2014-12-16 11:42 ` Johan Hovold
2014-12-20 9:11 ` [PATCH v2 " Jeremiah Mahler
2014-12-20 9:11 ` [PATCH v2 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk Jeremiah Mahler
2014-12-20 12:32 ` Sergei Shtylyov
2014-12-20 12:59 ` Jeremiah Mahler
2014-12-20 16:17 ` [PATCH v2b " Jeremiah Mahler
2014-12-20 9:11 ` [PATCH v2 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2015-01-11 0:44 ` [RESEND PATCH v2 0/2] usb: serial: handle -ENODEV and -EPROTO quietly Jeremiah Mahler
2015-01-11 0:44 ` [RESEND PATCH v2 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk Jeremiah Mahler
2015-01-11 11:36 ` Johan Hovold
2015-01-11 13:31 ` Jeremiah Mahler
2015-01-11 0:44 ` Jeremiah Mahler [this message]
2015-01-11 13:42 ` [PATCH v3 0/2] usb: serial: silence non-critical unplug read errors Jeremiah Mahler
2015-01-11 13:42 ` [PATCH v3 1/2] usb: serial: silence all non-critical " Jeremiah Mahler
2015-01-11 13:42 ` [PATCH v3 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2015-01-12 9:27 ` [PATCH v3 0/2] usb: serial: silence non-critical unplug read errors Johan Hovold
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