From 0ae1474367a15e1b65a9deed3a73a14475a419fc Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Sat, 27 Feb 2010 14:05:46 +0100
Subject: [PATCH] USB: serial: fix error message on close in generic driver
Resubmitting read urb fails with -EPERM if completion handler runs while
urb is being killed on close. This should not be reported as an error.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/serial/generic.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 89fac36684c5..e560d1d7f628 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -415,11 +415,13 @@ void usb_serial_generic_resubmit_read_urb(struct usb_serial_port *port,
((serial->type->read_bulk_callback) ?
serial->type->read_bulk_callback :
usb_serial_generic_read_bulk_callback), port);
+
result = usb_submit_urb(urb, mem_flags);
- if (result)
+ if (result && result != -EPERM) {
dev_err(&port->dev,
"%s - failed resubmitting read urb, error %d\n",
__func__, result);
+ }
}
EXPORT_SYMBOL_GPL(usb_serial_generic_resubmit_read_urb);
--
2.20.1