forked from luck/tmp_suning_uos_patched
USB: serial: digi_acceleport: 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: Peter Berger <pberger@brimson.com> Cc: Al Borchers <borchers@steinerpoint.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -1324,19 +1324,21 @@ static void digi_write_bulk_callback( struct urb *urb )
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struct digi_port *priv;
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struct digi_serial *serial_priv;
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int ret = 0;
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int status = urb->status;
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dbg( "digi_write_bulk_callback: TOP, urb->status=%d", urb->status );
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dbg("digi_write_bulk_callback: TOP, urb status=%d", status);
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/* port and serial sanity check */
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if( port == NULL || (priv=usb_get_serial_port_data(port)) == NULL ) {
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err("%s: port or port->private is NULL, status=%d", __FUNCTION__,
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urb->status );
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err("%s: port or port->private is NULL, status=%d",
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__FUNCTION__, status);
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return;
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}
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serial = port->serial;
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if( serial == NULL || (serial_priv=usb_get_serial_data(serial)) == NULL ) {
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err("%s: serial or serial->private is NULL, status=%d", __FUNCTION__, urb->status );
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err("%s: serial or serial->private is NULL, status=%d",
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__FUNCTION__, status);
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return;
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}
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@ -1740,25 +1742,28 @@ static void digi_read_bulk_callback( struct urb *urb )
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struct digi_port *priv;
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struct digi_serial *serial_priv;
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int ret;
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int status = urb->status;
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dbg( "digi_read_bulk_callback: TOP" );
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/* port sanity check, do not resubmit if port is not valid */
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if( port == NULL || (priv=usb_get_serial_port_data(port)) == NULL ) {
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err("%s: port or port->private is NULL, status=%d", __FUNCTION__,
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urb->status );
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err("%s: port or port->private is NULL, status=%d",
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__FUNCTION__, status);
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return;
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}
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if( port->serial == NULL
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|| (serial_priv=usb_get_serial_data(port->serial)) == NULL ) {
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err("%s: serial is bad or serial->private is NULL, status=%d", __FUNCTION__, urb->status );
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err("%s: serial is bad or serial->private is NULL, status=%d",
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__FUNCTION__, status);
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return;
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}
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/* do not resubmit urb if it has any status error */
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if( urb->status ) {
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err("%s: nonzero read bulk status: status=%d, port=%d", __FUNCTION__, urb->status, priv->dp_port_num );
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if (status) {
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err("%s: nonzero read bulk status: status=%d, port=%d",
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__FUNCTION__, status, priv->dp_port_num);
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return;
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}
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@ -1799,10 +1804,11 @@ static int digi_read_inb_callback( struct urb *urb )
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struct digi_port *priv = usb_get_serial_port_data(port);
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int opcode = ((unsigned char *)urb->transfer_buffer)[0];
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int len = ((unsigned char *)urb->transfer_buffer)[1];
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int status = ((unsigned char *)urb->transfer_buffer)[2];
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int port_status = ((unsigned char *)urb->transfer_buffer)[2];
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unsigned char *data = ((unsigned char *)urb->transfer_buffer)+3;
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int flag,throttled;
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int i;
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int status = urb->status;
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/* do not process callbacks on closed ports */
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/* but do continue the read chain */
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@ -1811,7 +1817,10 @@ static int digi_read_inb_callback( struct urb *urb )
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/* short/multiple packet check */
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if( urb->actual_length != len + 2 ) {
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err("%s: INCOMPLETE OR MULTIPLE PACKET, urb->status=%d, port=%d, opcode=%d, len=%d, actual_length=%d, status=%d", __FUNCTION__, urb->status, priv->dp_port_num, opcode, len, urb->actual_length, status );
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err("%s: INCOMPLETE OR MULTIPLE PACKET, urb status=%d, "
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"port=%d, opcode=%d, len=%d, actual_length=%d, "
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"port_status=%d", __FUNCTION__, status, priv->dp_port_num,
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opcode, len, urb->actual_length, port_status);
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return( -1 );
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}
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@ -1826,25 +1835,25 @@ static int digi_read_inb_callback( struct urb *urb )
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/* receive data */
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if( opcode == DIGI_CMD_RECEIVE_DATA ) {
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/* get flag from status */
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/* get flag from port_status */
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flag = 0;
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/* overrun is special, not associated with a char */
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if( status & DIGI_OVERRUN_ERROR ) {
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if (port_status & DIGI_OVERRUN_ERROR) {
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tty_insert_flip_char( tty, 0, TTY_OVERRUN );
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}
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/* break takes precedence over parity, */
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/* which takes precedence over framing errors */
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if( status & DIGI_BREAK_ERROR ) {
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if (port_status & DIGI_BREAK_ERROR) {
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flag = TTY_BREAK;
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} else if( status & DIGI_PARITY_ERROR ) {
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} else if (port_status & DIGI_PARITY_ERROR) {
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flag = TTY_PARITY;
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} else if( status & DIGI_FRAMING_ERROR ) {
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} else if (port_status & DIGI_FRAMING_ERROR) {
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flag = TTY_FRAME;
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}
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/* data length is len-1 (one byte of len is status) */
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/* data length is len-1 (one byte of len is port_status) */
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--len;
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len = tty_buffer_request_room(tty, len);
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