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| author | Johan Hovold <jhovold@gmail.com> | 2010-03-17 23:05:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-20 13:21:33 -0700 |
| commit | 41bd72f9041def8e3334d3e3693862d078f5cb9a (patch) | |
| tree | 6a63cccfedd49a8a6fd407dd275657fc52e1fb93 /drivers/usb/serial/generic.c | |
| parent | f26788da3b342099d2b02d99ba1cb7f154d6ef7b (diff) | |
| download | talos-op-linux-41bd72f9041def8e3334d3e3693862d078f5cb9a.tar.gz talos-op-linux-41bd72f9041def8e3334d3e3693862d078f5cb9a.zip | |
USB: serial: refactor read urb submission in generic driver
Use the already exported function for submitting the read urb associated
with a usb_serial_port.
Make sure it returns the result of usb_submit_urb and rename to the
more descriptive usb_serial_generic_submit_read_urb.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/generic.c')
| -rw-r--r-- | drivers/usb/serial/generic.c | 32 |
1 files changed, 8 insertions, 24 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index e1d245aa4a1d..d8dd3a59f56a 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -118,7 +118,6 @@ void usb_serial_generic_deregister(void) int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port) { - struct usb_serial *serial = port->serial; int result = 0; unsigned long flags; @@ -131,23 +130,8 @@ int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port spin_unlock_irqrestore(&port->lock, flags); /* if we have a bulk endpoint, start reading from it */ - if (port->bulk_in_size) { - /* Start reading from the device */ - usb_fill_bulk_urb(port->read_urb, serial->dev, - usb_rcvbulkpipe(serial->dev, - port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - ((serial->type->read_bulk_callback) ? - serial->type->read_bulk_callback : - usb_serial_generic_read_bulk_callback), - port); - result = usb_submit_urb(port->read_urb, GFP_KERNEL); - if (result) - dev_err(&port->dev, - "%s - failed resubmitting read urb, error %d\n", - __func__, result); - } + if (port->bulk_in_size) + result = usb_serial_generic_submit_read_urb(port, GFP_KERNEL); return result; } @@ -418,9 +402,8 @@ int usb_serial_generic_chars_in_buffer(struct tty_struct *tty) return chars; } - -void usb_serial_generic_resubmit_read_urb(struct usb_serial_port *port, - gfp_t mem_flags) +int usb_serial_generic_submit_read_urb(struct usb_serial_port *port, + gfp_t mem_flags) { struct urb *urb = port->read_urb; struct usb_serial *serial = port->serial; @@ -439,11 +422,12 @@ void usb_serial_generic_resubmit_read_urb(struct usb_serial_port *port, result = usb_submit_urb(urb, mem_flags); if (result && result != -EPERM) { dev_err(&port->dev, - "%s - failed resubmitting read urb, error %d\n", + "%s - failed submitting read urb, error %d\n", __func__, result); } + return result; } -EXPORT_SYMBOL_GPL(usb_serial_generic_resubmit_read_urb); +EXPORT_SYMBOL_GPL(usb_serial_generic_submit_read_urb); /* Push data to tty layer and resubmit the bulk read URB */ static void flush_and_resubmit_read_urb(struct usb_serial_port *port) @@ -471,7 +455,7 @@ static void flush_and_resubmit_read_urb(struct usb_serial_port *port) tty_flip_buffer_push(tty); tty_kref_put(tty); done: - usb_serial_generic_resubmit_read_urb(port, GFP_ATOMIC); + usb_serial_generic_submit_read_urb(port, GFP_ATOMIC); } void usb_serial_generic_read_bulk_callback(struct urb *urb) |
