m68k: vme_scc - Kill warn_unused_result warnings

warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>

drivers/char/vme_scc.c

@@ -198,6 +198,7 @@ static void scc_init_portstructs(void)
 static int mvme147_scc_init(void)
 {
 	struct scc_port *port;
+	int error;
 
 	printk(KERN_INFO "SCC: MVME147 Serial Driver\n");
 	/* Init channel A */
@@ -207,14 +208,23 @@ static int mvme147_scc_init(void)
 	port->datap = port->ctrlp + 1;
 	port->port_a = &scc_ports[0];
 	port->port_b = &scc_ports[1];
-	request_irq(MVME147_IRQ_SCCA_TX, scc_tx_int, IRQF_DISABLED,
+	error = request_irq(MVME147_IRQ_SCCA_TX, scc_tx_int, IRQF_DISABLED,
 		            "SCC-A TX", port);
-	request_irq(MVME147_IRQ_SCCA_STAT, scc_stat_int, IRQF_DISABLED,
+	if (error)
+		goto fail;
+	error = request_irq(MVME147_IRQ_SCCA_STAT, scc_stat_int, IRQF_DISABLED,
 		            "SCC-A status", port);
-	request_irq(MVME147_IRQ_SCCA_RX, scc_rx_int, IRQF_DISABLED,
+	if (error)
+		goto fail_free_a_tx;
+	error = request_irq(MVME147_IRQ_SCCA_RX, scc_rx_int, IRQF_DISABLED,
 		            "SCC-A RX", port);
-	request_irq(MVME147_IRQ_SCCA_SPCOND, scc_spcond_int, IRQF_DISABLED,
-		            "SCC-A special cond", port);
+	if (error)
+		goto fail_free_a_stat;
+	error = request_irq(MVME147_IRQ_SCCA_SPCOND, scc_spcond_int,
+			    IRQF_DISABLED, "SCC-A special cond", port);
+	if (error)
+		goto fail_free_a_rx;
+
 	{
 		SCC_ACCESS_INIT(port);
 
@@ -234,14 +244,23 @@ static int mvme147_scc_init(void)
 	port->datap = port->ctrlp + 1;
 	port->port_a = &scc_ports[0];
 	port->port_b = &scc_ports[1];
-	request_irq(MVME147_IRQ_SCCB_TX, scc_tx_int, IRQF_DISABLED,
+	error = request_irq(MVME147_IRQ_SCCB_TX, scc_tx_int, IRQF_DISABLED,
 		            "SCC-B TX", port);
-	request_irq(MVME147_IRQ_SCCB_STAT, scc_stat_int, IRQF_DISABLED,
+	if (error)
+		goto fail_free_a_spcond;
+	error = request_irq(MVME147_IRQ_SCCB_STAT, scc_stat_int, IRQF_DISABLED,
 		            "SCC-B status", port);
-	request_irq(MVME147_IRQ_SCCB_RX, scc_rx_int, IRQF_DISABLED,
+	if (error)
+		goto fail_free_b_tx;
+	error = request_irq(MVME147_IRQ_SCCB_RX, scc_rx_int, IRQF_DISABLED,
 		            "SCC-B RX", port);
-	request_irq(MVME147_IRQ_SCCB_SPCOND, scc_spcond_int, IRQF_DISABLED,
-		            "SCC-B special cond", port);
+	if (error)
+		goto fail_free_b_stat;
+	error = request_irq(MVME147_IRQ_SCCB_SPCOND, scc_spcond_int,
+			    IRQF_DISABLED, "SCC-B special cond", port);
+	if (error)
+		goto fail_free_b_rx;
+
 	{
 		SCC_ACCESS_INIT(port);
 
@@ -257,6 +276,23 @@ static int mvme147_scc_init(void)
 	scc_init_drivers();
 
 	return 0;
+
+fail_free_b_rx:
+	free_irq(MVME147_IRQ_SCCB_RX, port);
+fail_free_b_stat:
+	free_irq(MVME147_IRQ_SCCB_STAT, port);
+fail_free_b_tx:
+	free_irq(MVME147_IRQ_SCCB_TX, port);
+fail_free_a_spcond:
+	free_irq(MVME147_IRQ_SCCA_SPCOND, port);
+fail_free_a_rx:
+	free_irq(MVME147_IRQ_SCCA_RX, port);
+fail_free_a_stat:
+	free_irq(MVME147_IRQ_SCCA_STAT, port);
+fail_free_a_tx:
+	free_irq(MVME147_IRQ_SCCA_TX, port);
+fail:
+	return error;
 }
 #endif
 
@@ -265,6 +301,7 @@ static int mvme147_scc_init(void)
 static int mvme162_scc_init(void)
 {
 	struct scc_port *port;
+	int error;
 
 	if (!(mvme16x_config & MVME16x_CONFIG_GOT_SCCA))
 		return (-ENODEV);
@@ -277,14 +314,23 @@ static int mvme162_scc_init(void)
 	port->datap = port->ctrlp + 2;
 	port->port_a = &scc_ports[0];
 	port->port_b = &scc_ports[1];
-	request_irq(MVME162_IRQ_SCCA_TX, scc_tx_int, IRQF_DISABLED,
+	error = request_irq(MVME162_IRQ_SCCA_TX, scc_tx_int, IRQF_DISABLED,
 		            "SCC-A TX", port);
-	request_irq(MVME162_IRQ_SCCA_STAT, scc_stat_int, IRQF_DISABLED,
+	if (error)
+		goto fail;
+	error = request_irq(MVME162_IRQ_SCCA_STAT, scc_stat_int, IRQF_DISABLED,
 		            "SCC-A status", port);
-	request_irq(MVME162_IRQ_SCCA_RX, scc_rx_int, IRQF_DISABLED,
+	if (error)
+		goto fail_free_a_tx;
+	error = request_irq(MVME162_IRQ_SCCA_RX, scc_rx_int, IRQF_DISABLED,
 		            "SCC-A RX", port);
-	request_irq(MVME162_IRQ_SCCA_SPCOND, scc_spcond_int, IRQF_DISABLED,
-		            "SCC-A special cond", port);
+	if (error)
+		goto fail_free_a_stat;
+	error = request_irq(MVME162_IRQ_SCCA_SPCOND, scc_spcond_int,
+			    IRQF_DISABLED, "SCC-A special cond", port);
+	if (error)
+		goto fail_free_a_rx;
+
 	{
 		SCC_ACCESS_INIT(port);
 
@@ -304,14 +350,22 @@ static int mvme162_scc_init(void)
 	port->datap = port->ctrlp + 2;
 	port->port_a = &scc_ports[0];
 	port->port_b = &scc_ports[1];
-	request_irq(MVME162_IRQ_SCCB_TX, scc_tx_int, IRQF_DISABLED,
+	error = request_irq(MVME162_IRQ_SCCB_TX, scc_tx_int, IRQF_DISABLED,
 		            "SCC-B TX", port);
-	request_irq(MVME162_IRQ_SCCB_STAT, scc_stat_int, IRQF_DISABLED,
+	if (error)
+		goto fail_free_a_spcond;
+	error = request_irq(MVME162_IRQ_SCCB_STAT, scc_stat_int, IRQF_DISABLED,
 		            "SCC-B status", port);
-	request_irq(MVME162_IRQ_SCCB_RX, scc_rx_int, IRQF_DISABLED,
+	if (error)
+		goto fail_free_b_tx;
+	error = request_irq(MVME162_IRQ_SCCB_RX, scc_rx_int, IRQF_DISABLED,
 		            "SCC-B RX", port);
-	request_irq(MVME162_IRQ_SCCB_SPCOND, scc_spcond_int, IRQF_DISABLED,
-		            "SCC-B special cond", port);
+	if (error)
+		goto fail_free_b_stat;
+	error = request_irq(MVME162_IRQ_SCCB_SPCOND, scc_spcond_int,
+			    IRQF_DISABLED, "SCC-B special cond", port);
+	if (error)
+		goto fail_free_b_rx;
 
 	{
 		SCC_ACCESS_INIT(port);	/* Either channel will do */
@@ -328,6 +382,23 @@ static int mvme162_scc_init(void)
 	scc_init_drivers();
 
 	return 0;
+
+fail_free_b_rx:
+	free_irq(MVME162_IRQ_SCCB_RX, port);
+fail_free_b_stat:
+	free_irq(MVME162_IRQ_SCCB_STAT, port);
+fail_free_b_tx:
+	free_irq(MVME162_IRQ_SCCB_TX, port);
+fail_free_a_spcond:
+	free_irq(MVME162_IRQ_SCCA_SPCOND, port);
+fail_free_a_rx:
+	free_irq(MVME162_IRQ_SCCA_RX, port);
+fail_free_a_stat:
+	free_irq(MVME162_IRQ_SCCA_STAT, port);
+fail_free_a_tx:
+	free_irq(MVME162_IRQ_SCCA_TX, port);
+fail:
+	return error;
 }
 #endif
 
@@ -336,6 +407,7 @@ static int mvme162_scc_init(void)
 static int bvme6000_scc_init(void)
 {
 	struct scc_port *port;
+	int error;
 
 	printk(KERN_INFO "SCC: BVME6000 Serial Driver\n");
 	/* Init channel A */
@@ -345,14 +417,23 @@ static int bvme6000_scc_init(void)
 	port->datap = port->ctrlp + 4;
 	port->port_a = &scc_ports[0];
 	port->port_b = &scc_ports[1];
-	request_irq(BVME_IRQ_SCCA_TX, scc_tx_int, IRQF_DISABLED,
+	error = request_irq(BVME_IRQ_SCCA_TX, scc_tx_int, IRQF_DISABLED,
 		            "SCC-A TX", port);
-	request_irq(BVME_IRQ_SCCA_STAT, scc_stat_int, IRQF_DISABLED,
+	if (error)
+		goto fail;
+	error = request_irq(BVME_IRQ_SCCA_STAT, scc_stat_int, IRQF_DISABLED,
 		            "SCC-A status", port);
-	request_irq(BVME_IRQ_SCCA_RX, scc_rx_int, IRQF_DISABLED,
+	if (error)
+		goto fail_free_a_tx;
+	error = request_irq(BVME_IRQ_SCCA_RX, scc_rx_int, IRQF_DISABLED,
 		            "SCC-A RX", port);
-	request_irq(BVME_IRQ_SCCA_SPCOND, scc_spcond_int, IRQF_DISABLED,
-		            "SCC-A special cond", port);
+	if (error)
+		goto fail_free_a_stat;
+	error = request_irq(BVME_IRQ_SCCA_SPCOND, scc_spcond_int,
+			    IRQF_DISABLED, "SCC-A special cond", port);
+	if (error)
+		goto fail_free_a_rx;
+
 	{
 		SCC_ACCESS_INIT(port);
 
@@ -372,14 +453,22 @@ static int bvme6000_scc_init(void)
 	port->datap = port->ctrlp + 4;
 	port->port_a = &scc_ports[0];
 	port->port_b = &scc_ports[1];
-	request_irq(BVME_IRQ_SCCB_TX, scc_tx_int, IRQF_DISABLED,
+	error = request_irq(BVME_IRQ_SCCB_TX, scc_tx_int, IRQF_DISABLED,
 		            "SCC-B TX", port);
-	request_irq(BVME_IRQ_SCCB_STAT, scc_stat_int, IRQF_DISABLED,
+	if (error)
+		goto fail_free_a_spcond;
+	error = request_irq(BVME_IRQ_SCCB_STAT, scc_stat_int, IRQF_DISABLED,
 		            "SCC-B status", port);
-	request_irq(BVME_IRQ_SCCB_RX, scc_rx_int, IRQF_DISABLED,
+	if (error)
+		goto fail_free_b_tx;
+	error = request_irq(BVME_IRQ_SCCB_RX, scc_rx_int, IRQF_DISABLED,
 		            "SCC-B RX", port);
-	request_irq(BVME_IRQ_SCCB_SPCOND, scc_spcond_int, IRQF_DISABLED,
-		            "SCC-B special cond", port);
+	if (error)
+		goto fail_free_b_stat;
+	error = request_irq(BVME_IRQ_SCCB_SPCOND, scc_spcond_int,
+			    IRQF_DISABLED, "SCC-B special cond", port);
+	if (error)
+		goto fail_free_b_rx;
 
 	{
 		SCC_ACCESS_INIT(port);	/* Either channel will do */
@@ -393,6 +482,23 @@ static int bvme6000_scc_init(void)
 	scc_init_drivers();
 
 	return 0;
+
+fail:
+	free_irq(BVME_IRQ_SCCA_STAT, port);
+fail_free_a_tx:
+	free_irq(BVME_IRQ_SCCA_RX, port);
+fail_free_a_stat:
+	free_irq(BVME_IRQ_SCCA_SPCOND, port);
+fail_free_a_rx:
+	free_irq(BVME_IRQ_SCCB_TX, port);
+fail_free_a_spcond:
+	free_irq(BVME_IRQ_SCCB_STAT, port);
+fail_free_b_tx:
+	free_irq(BVME_IRQ_SCCB_RX, port);
+fail_free_b_stat:
+	free_irq(BVME_IRQ_SCCB_SPCOND, port);
+fail_free_b_rx:
+	return error;
 }
 #endif