ata: pata_parport-bpck6: reduce indents in bpck6_open

Reverse error handling conditions to reduce code indents in bpck6_open.
Signed-off-by: Ondrej Zary <linux@zary.sk>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

drivers/ata/pata_parport/bpck6.c

@@ -318,16 +318,19 @@ static int bpck6_open(struct pi_adapter *pi)
 
 	j = ((i & 0x08) << 4) | ((i & 0x07) << 3);
 	k = parport_read_status(pi->pardev->port) & 0xB8;
-	if (j == k) {
+	if (j != k)
+		goto fail;
+
 	parport_frob_control(pi->pardev->port, PARPORT_CONTROL_AUTOFD, 0);
 	k = (parport_read_status(pi->pardev->port) & 0xB8) ^ 0xB8;
-		if (j == k) {
+	if (j != k)
+		goto fail;
+
 	if (i & 4)	// EPP
 		parport_frob_control(pi->pardev->port,
 			PARPORT_CONTROL_SELECT | PARPORT_CONTROL_INIT, 0);
 	else				// PPC/ECP
-				parport_frob_control(pi->pardev->port,
-					PARPORT_CONTROL_SELECT, 0);
+		parport_frob_control(pi->pardev->port, PARPORT_CONTROL_SELECT, 0);
 
 	pi->private = 0;
 
@@ -339,9 +342,8 @@ static int bpck6_open(struct pi_adapter *pi)
 		pi->private |= fifo_wait;
 
 	return 1;
-		}
-	}
 
+fail:
 	parport_write_control(pi->pardev->port, pi->saved_r2);
 	parport_write_data(pi->pardev->port, pi->saved_r0);