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USB: serial: garmin_gps: clean up urb->status usage
This done in anticipation of removal of urb->status, which will make that patch easier to review and apply in the future. Cc: <linux-usb-devel@lists.sourceforge.net> Cc: Hermann Kneissel <herkne@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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0fb0aa188d
commit
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1 changed files with 25 additions and 22 deletions
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@ -1036,15 +1036,16 @@ static void garmin_write_bulk_callback (struct urb *urb)
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unsigned long flags;
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struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
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struct garmin_data * garmin_data_p = usb_get_serial_port_data(port);
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int status = urb->status;
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/* free up the transfer buffer, as usb_free_urb() does not do this */
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kfree (urb->transfer_buffer);
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dbg("%s - port %d", __FUNCTION__, port->number);
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if (urb->status) {
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if (status) {
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dbg("%s - nonzero write bulk status received: %d",
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__FUNCTION__, urb->status);
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__FUNCTION__, status);
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spin_lock_irqsave(&garmin_data_p->lock, flags);
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garmin_data_p->flags |= CLEAR_HALT_REQUIRED;
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spin_unlock_irqrestore(&garmin_data_p->lock, flags);
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@ -1281,7 +1282,8 @@ static void garmin_read_bulk_callback (struct urb *urb)
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struct usb_serial *serial = port->serial;
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struct garmin_data * garmin_data_p = usb_get_serial_port_data(port);
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unsigned char *data = urb->transfer_buffer;
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int status;
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int status = urb->status;
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int retval;
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dbg("%s - port %d", __FUNCTION__, port->number);
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@ -1290,9 +1292,9 @@ static void garmin_read_bulk_callback (struct urb *urb)
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return;
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}
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if (urb->status) {
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if (status) {
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dbg("%s - nonzero read bulk status received: %d",
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__FUNCTION__, urb->status);
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__FUNCTION__, status);
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return;
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}
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@ -1306,19 +1308,19 @@ static void garmin_read_bulk_callback (struct urb *urb)
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spin_lock_irqsave(&garmin_data_p->lock, flags);
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garmin_data_p->flags &= ~FLAGS_BULK_IN_RESTART;
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spin_unlock_irqrestore(&garmin_data_p->lock, flags);
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status = usb_submit_urb(port->read_urb, GFP_ATOMIC);
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if (status)
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retval = usb_submit_urb(port->read_urb, GFP_ATOMIC);
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if (retval)
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dev_err(&port->dev,
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"%s - failed resubmitting read urb, error %d\n",
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__FUNCTION__, status);
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__FUNCTION__, retval);
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} else if (urb->actual_length > 0) {
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/* Continue trying to read until nothing more is received */
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if (0 == (garmin_data_p->flags & FLAGS_THROTTLED)) {
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status = usb_submit_urb(port->read_urb, GFP_ATOMIC);
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if (status)
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retval = usb_submit_urb(port->read_urb, GFP_ATOMIC);
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if (retval)
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dev_err(&port->dev,
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"%s - failed resubmitting read urb, error %d\n",
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__FUNCTION__, status);
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"%s - failed resubmitting read urb, "
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"error %d\n", __FUNCTION__, retval);
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}
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} else {
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dbg("%s - end of bulk data", __FUNCTION__);
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@ -1333,13 +1335,14 @@ static void garmin_read_bulk_callback (struct urb *urb)
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static void garmin_read_int_callback (struct urb *urb)
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{
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unsigned long flags;
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int status;
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int retval;
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struct usb_serial_port *port = (struct usb_serial_port *)urb->context;
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struct usb_serial *serial = port->serial;
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struct garmin_data * garmin_data_p = usb_get_serial_port_data(port);
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unsigned char *data = urb->transfer_buffer;
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int status = urb->status;
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switch (urb->status) {
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switch (status) {
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case 0:
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/* success */
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break;
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@ -1348,11 +1351,11 @@ static void garmin_read_int_callback (struct urb *urb)
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case -ESHUTDOWN:
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/* this urb is terminated, clean up */
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dbg("%s - urb shutting down with status: %d",
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__FUNCTION__, urb->status);
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__FUNCTION__, status);
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return;
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default:
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dbg("%s - nonzero urb status received: %d",
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__FUNCTION__, urb->status);
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__FUNCTION__, status);
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return;
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}
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@ -1374,11 +1377,11 @@ static void garmin_read_int_callback (struct urb *urb)
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port->read_urb->transfer_buffer,
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port->read_urb->transfer_buffer_length,
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garmin_read_bulk_callback, port);
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status = usb_submit_urb(port->read_urb, GFP_ATOMIC);
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if (status) {
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retval = usb_submit_urb(port->read_urb, GFP_ATOMIC);
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if (retval) {
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dev_err(&port->dev,
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"%s - failed submitting read urb, error %d\n",
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__FUNCTION__, status);
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__FUNCTION__, retval);
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} else {
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spin_lock_irqsave(&garmin_data_p->lock, flags);
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garmin_data_p->flags |= FLAGS_BULK_IN_ACTIVE;
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@ -1422,11 +1425,11 @@ static void garmin_read_int_callback (struct urb *urb)
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}
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port->interrupt_in_urb->dev = port->serial->dev;
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status = usb_submit_urb (urb, GFP_ATOMIC);
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if (status)
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retval = usb_submit_urb (urb, GFP_ATOMIC);
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if (retval)
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dev_err(&urb->dev->dev,
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"%s - Error %d submitting interrupt urb\n",
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__FUNCTION__, status);
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__FUNCTION__, retval);
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}
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