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platform_kernel-5.15
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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>
This commit is contained in:
Johan Hovold 2010-02-27 14:05:46 +01:00 committed by Greg Kroah-Hartman
parent 7152b59259
commit 0ae1474367
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/serial/generic.c
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@ -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) ?
serial->type->read_bulk_callback : serial->type->read_bulk_callback :
usb_serial_generic_read_bulk_callback), port); usb_serial_generic_read_bulk_callback), port);
result = usb_submit_urb(urb, mem_flags); result = usb_submit_urb(urb, mem_flags);
if (result) if (result && result != -EPERM) {
dev_err(&port->dev, dev_err(&port->dev,
"%s - failed resubmitting read urb, error %d\n", "%s - failed resubmitting read urb, error %d\n",
__func__, result); __func__, result);
}
} }
EXPORT_SYMBOL_GPL(usb_serial_generic_resubmit_read_urb); EXPORT_SYMBOL_GPL(usb_serial_generic_resubmit_read_urb);