Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

Conflicts:

	net/sunrpc/auth_gss/gss_krb5_crypto.c
	net/sunrpc/auth_gss/gss_spkm3_token.c
	net/sunrpc/clnt.c

Merge with mainline and fix conflicts.

11 files changed, 93 insertions, 71 deletions

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 5261f0a..2964ca9 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -920,12 +920,16 @@ static void autoconfig(struct uart_8250_port *up, unsigned int probeflags)
 #ifdef __i386__
 		outb(0xff, 0x080);
 #endif
-		scratch2 = serial_inp(up, UART_IER);
+		/*
+		 * Mask out IER[7:4] bits for test as some UARTs (e.g. TL
+		 * 16C754B) allow only to modify them if an EFR bit is set.
+		 */
+		scratch2 = serial_inp(up, UART_IER) & 0x0f;
 		serial_outp(up, UART_IER, 0x0F);
 #ifdef __i386__
 		outb(0, 0x080);
 #endif
-		scratch3 = serial_inp(up, UART_IER);
+		scratch3 = serial_inp(up, UART_IER) & 0x0f;
 		serial_outp(up, UART_IER, scratch);
 		if (scratch2 != 0 || scratch3 != 0x0F) {
 			/*
diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index 52e2e64..a2dac37 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -679,6 +679,13 @@ static struct pci_serial_quirk pci_serial_quirks[] = {
 	 */
 	{
 		.vendor		= PCI_VENDOR_ID_PLX,
+		.device		= PCI_DEVICE_ID_PLX_9030,
+		.subvendor	= PCI_SUBVENDOR_ID_PERLE,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_PLX,
 		.device		= PCI_DEVICE_ID_PLX_9050,
 		.subvendor	= PCI_SUBVENDOR_ID_EXSYS,
 		.subdevice	= PCI_SUBDEVICE_ID_EXSYS_4055,
@@ -936,6 +943,7 @@ enum pci_board_num_t {
 
 	pbn_b2_1_115200,
 	pbn_b2_2_115200,
+	pbn_b2_4_115200,
 	pbn_b2_8_115200,
 
 	pbn_b2_1_460800,
@@ -1249,6 +1257,12 @@ static struct pciserial_board pci_boards[] __devinitdata = {
 		.base_baud	= 115200,
 		.uart_offset	= 8,
 	},
+	[pbn_b2_4_115200] = {
+		.flags          = FL_BASE2,
+		.num_ports      = 4,
+		.base_baud      = 115200,
+		.uart_offset    = 8,
+	},
 	[pbn_b2_8_115200] = {
 		.flags		= FL_BASE2,
 		.num_ports	= 8,
@@ -1990,6 +2004,10 @@ static struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_PANACOM, PCI_DEVICE_ID_PANACOM_DUALMODEM,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_panacom2 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030,
+		PCI_VENDOR_ID_ESDGMBH,
+		PCI_DEVICE_ID_ESDGMBH_CPCIASIO4, 0, 0,
+		pbn_b2_4_115200 },
 	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
 		PCI_SUBVENDOR_ID_CHASE_PCIFAST,
 		PCI_SUBDEVICE_ID_CHASE_PCIFAST4, 0, 0, 
@@ -2379,6 +2397,15 @@ static struct pci_device_id serial_pci_tbl[] = {
 		pbn_b2_2_115200 },
 
 	/*
+	 * Perle PCI-RAS cards
+	 */
+	{       PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030,
+		PCI_SUBVENDOR_ID_PERLE, PCI_SUBDEVICE_ID_PCI_RAS4,
+		0, 0, pbn_b2_4_921600 },
+	{       PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030,
+		PCI_SUBVENDOR_ID_PERLE, PCI_SUBDEVICE_ID_PCI_RAS8,
+		0, 0, pbn_b2_8_921600 },
+	/*
 	 * These entries match devices with class COMMUNICATION_SERIAL,
 	 * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL
 	 */
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 2978c09..5cc6b91 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -916,6 +916,11 @@ config SERIAL_TXX9
 config HAS_TXX9_SERIAL
 	bool
 
+config SERIAL_TXX9_NR_UARTS
+	int "Maximum number of TMPTX39XX/49XX SIO ports"
+	depends on SERIAL_TXX9
+	default "6"
+
 config SERIAL_TXX9_CONSOLE
 	bool "TMPTX39XX/49XX SIO Console support"
 	depends on SERIAL_TXX9=y
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 881f886..df45a7a 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -73,35 +73,35 @@
 
 #define ATMEL_ISR_PASS_LIMIT	256
 
-#define UART_PUT_CR(port,v)	writel(v, (port)->membase + ATMEL_US_CR)
-#define UART_GET_MR(port)	readl((port)->membase + ATMEL_US_MR)
-#define UART_PUT_MR(port,v)	writel(v, (port)->membase + ATMEL_US_MR)
-#define UART_PUT_IER(port,v)	writel(v, (port)->membase + ATMEL_US_IER)
-#define UART_PUT_IDR(port,v)	writel(v, (port)->membase + ATMEL_US_IDR)
-#define UART_GET_IMR(port)	readl((port)->membase + ATMEL_US_IMR)
-#define UART_GET_CSR(port)	readl((port)->membase + ATMEL_US_CSR)
-#define UART_GET_CHAR(port)	readl((port)->membase + ATMEL_US_RHR)
-#define UART_PUT_CHAR(port,v)	writel(v, (port)->membase + ATMEL_US_THR)
-#define UART_GET_BRGR(port)	readl((port)->membase + ATMEL_US_BRGR)
-#define UART_PUT_BRGR(port,v)	writel(v, (port)->membase + ATMEL_US_BRGR)
-#define UART_PUT_RTOR(port,v)	writel(v, (port)->membase + ATMEL_US_RTOR)
-
-// #define UART_GET_CR(port)	readl((port)->membase + ATMEL_US_CR)		// is write-only
+#define UART_PUT_CR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_CR)
+#define UART_GET_MR(port)	__raw_readl((port)->membase + ATMEL_US_MR)
+#define UART_PUT_MR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_MR)
+#define UART_PUT_IER(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_IER)
+#define UART_PUT_IDR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_IDR)
+#define UART_GET_IMR(port)	__raw_readl((port)->membase + ATMEL_US_IMR)
+#define UART_GET_CSR(port)	__raw_readl((port)->membase + ATMEL_US_CSR)
+#define UART_GET_CHAR(port)	__raw_readl((port)->membase + ATMEL_US_RHR)
+#define UART_PUT_CHAR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_THR)
+#define UART_GET_BRGR(port)	__raw_readl((port)->membase + ATMEL_US_BRGR)
+#define UART_PUT_BRGR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_BRGR)
+#define UART_PUT_RTOR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_RTOR)
+
+// #define UART_GET_CR(port)	__raw_readl((port)->membase + ATMEL_US_CR)		// is write-only
 
  /* PDC registers */
-#define UART_PUT_PTCR(port,v)	writel(v, (port)->membase + ATMEL_PDC_PTCR)
-#define UART_GET_PTSR(port)	readl((port)->membase + ATMEL_PDC_PTSR)
-
-#define UART_PUT_RPR(port,v)	writel(v, (port)->membase + ATMEL_PDC_RPR)
-#define UART_GET_RPR(port)	readl((port)->membase + ATMEL_PDC_RPR)
-#define UART_PUT_RCR(port,v)	writel(v, (port)->membase + ATMEL_PDC_RCR)
-#define UART_PUT_RNPR(port,v)	writel(v, (port)->membase + ATMEL_PDC_RNPR)
-#define UART_PUT_RNCR(port,v)	writel(v, (port)->membase + ATMEL_PDC_RNCR)
-
-#define UART_PUT_TPR(port,v)	writel(v, (port)->membase + ATMEL_PDC_TPR)
-#define UART_PUT_TCR(port,v)	writel(v, (port)->membase + ATMEL_PDC_TCR)
-//#define UART_PUT_TNPR(port,v)	writel(v, (port)->membase + ATMEL_PDC_TNPR)
-//#define UART_PUT_TNCR(port,v)	writel(v, (port)->membase + ATMEL_PDC_TNCR)
+#define UART_PUT_PTCR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_PTCR)
+#define UART_GET_PTSR(port)	__raw_readl((port)->membase + ATMEL_PDC_PTSR)
+
+#define UART_PUT_RPR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_RPR)
+#define UART_GET_RPR(port)	__raw_readl((port)->membase + ATMEL_PDC_RPR)
+#define UART_PUT_RCR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_RCR)
+#define UART_PUT_RNPR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_RNPR)
+#define UART_PUT_RNCR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_RNCR)
+
+#define UART_PUT_TPR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_TPR)
+#define UART_PUT_TCR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_TCR)
+//#define UART_PUT_TNPR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_TNPR)
+//#define UART_PUT_TNCR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_TNCR)
 
 static int (*atmel_open_hook)(struct uart_port *);
 static void (*atmel_close_hook)(struct uart_port *);
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
index 08e55fd..925fb60 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
@@ -40,6 +40,7 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
+#include <asm/fs_pd.h>
 
 #include <linux/serial_core.h>
 #include <linux/kernel.h>
@@ -145,7 +146,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 		/* was hostalloc but changed cause it blows away the */
 		/* large tlb mapping when pinning the kernel area    */
 		mem_addr = (u8 *) cpm_dpram_addr(cpm_dpalloc(memsz, 8));
-		dma_addr = (u32)mem_addr;
+		dma_addr = (u32)cpm_dpram_phys(mem_addr);
 	} else
 		mem_addr = dma_alloc_coherent(NULL, memsz, &dma_addr,
 					      GFP_KERNEL);
@@ -205,7 +206,7 @@ int __init cpm_uart_init_portdesc(void)
 	    (unsigned long)&cpmp->cp_smc[0];
 	cpm_uart_ports[UART_SMC1].smcp->smc_smcm |= (SMCM_RX | SMCM_TX);
 	cpm_uart_ports[UART_SMC1].smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-	cpm_uart_ports[UART_SMC1].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+	cpm_uart_ports[UART_SMC1].port.uartclk = uart_clock();
 	cpm_uart_port_map[cpm_uart_nr++] = UART_SMC1;
 #endif
 
@@ -217,7 +218,7 @@ int __init cpm_uart_init_portdesc(void)
 	    (unsigned long)&cpmp->cp_smc[1];
 	cpm_uart_ports[UART_SMC2].smcp->smc_smcm |= (SMCM_RX | SMCM_TX);
 	cpm_uart_ports[UART_SMC2].smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-	cpm_uart_ports[UART_SMC2].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+	cpm_uart_ports[UART_SMC2].port.uartclk = uart_clock();
 	cpm_uart_port_map[cpm_uart_nr++] = UART_SMC2;
 #endif
 
@@ -231,7 +232,7 @@ int __init cpm_uart_init_portdesc(void)
 	    ~(UART_SCCM_TX | UART_SCCM_RX);
 	cpm_uart_ports[UART_SCC1].sccp->scc_gsmrl &=
 	    ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-	cpm_uart_ports[UART_SCC1].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+	cpm_uart_ports[UART_SCC1].port.uartclk = uart_clock();
 	cpm_uart_port_map[cpm_uart_nr++] = UART_SCC1;
 #endif
 
@@ -245,7 +246,7 @@ int __init cpm_uart_init_portdesc(void)
 	    ~(UART_SCCM_TX | UART_SCCM_RX);
 	cpm_uart_ports[UART_SCC2].sccp->scc_gsmrl &=
 	    ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-	cpm_uart_ports[UART_SCC2].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+	cpm_uart_ports[UART_SCC2].port.uartclk = uart_clock();
 	cpm_uart_port_map[cpm_uart_nr++] = UART_SCC2;
 #endif
 
@@ -259,7 +260,7 @@ int __init cpm_uart_init_portdesc(void)
 	    ~(UART_SCCM_TX | UART_SCCM_RX);
 	cpm_uart_ports[UART_SCC3].sccp->scc_gsmrl &=
 	    ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-	cpm_uart_ports[UART_SCC3].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+	cpm_uart_ports[UART_SCC3].port.uartclk = uart_clock();
 	cpm_uart_port_map[cpm_uart_nr++] = UART_SCC3;
 #endif
 
@@ -273,7 +274,7 @@ int __init cpm_uart_init_portdesc(void)
 	    ~(UART_SCCM_TX | UART_SCCM_RX);
 	cpm_uart_ports[UART_SCC4].sccp->scc_gsmrl &=
 	    ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-	cpm_uart_ports[UART_SCC4].port.uartclk = (((bd_t *) __res)->bi_intfreq);
+	cpm_uart_ports[UART_SCC4].port.uartclk = uart_clock();
 	cpm_uart_port_map[cpm_uart_nr++] = UART_SCC4;
 #endif
 	return 0;
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.h b/drivers/serial/cpm_uart/cpm_uart_cpm1.h
index 5eb49ea..a99e45e 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.h
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.h
@@ -20,9 +20,6 @@
 #define SCC3_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SCC3)
 #define SCC4_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SCC4)
 
-/* the CPM address */
-#define CPM_ADDR	IMAP_ADDR
-
 static inline void cpm_set_brg(int brg, int baud)
 {
 	cpm_setbrg(brg, baud);
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.h b/drivers/serial/cpm_uart/cpm_uart_cpm2.h
index 4b77911..1b3219f 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.h
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.h
@@ -20,9 +20,6 @@
 #define SCC3_IRQ	SIU_INT_SCC3
 #define SCC4_IRQ	SIU_INT_SCC4
 
-/* the CPM address */
-#define CPM_ADDR	CPM_MAP_ADDR
-
 static inline void cpm_set_brg(int brg, int baud)
 {
 	cpm_setbrg(brg, baud);
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index 42b050c..312bef6 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -3173,12 +3173,8 @@ do_softint(void *private_)
 	if (!tty)
 		return;
 
-	if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event)) {
-		if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-		    tty->ldisc.write_wakeup)
-			(tty->ldisc.write_wakeup)(tty);
-		wake_up_interruptible(&tty->write_wait);
-	}
+	if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event))
+		tty_wakeup(tty);
 }
 
 static int
@@ -3798,11 +3794,7 @@ rs_flush_buffer(struct tty_struct *tty)
 	info->xmit.head = info->xmit.tail = 0;
 	restore_flags(flags);
 
-	wake_up_interruptible(&tty->write_wait);
-
-	if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-	    tty->ldisc.write_wakeup)
-		(tty->ldisc.write_wakeup)(tty);
+	tty_wakeup(tty);
 }
 
 /*
diff --git a/drivers/serial/ioc4_serial.c b/drivers/serial/ioc4_serial.c
index c862f67..f540212 100644
--- a/drivers/serial/ioc4_serial.c
+++ b/drivers/serial/ioc4_serial.c
@@ -2685,7 +2685,7 @@ static int ioc4_serial_remove_one(struct ioc4_driver_data *idd)
 		free_irq(control->ic_irq, soft);
 		if (soft->is_ioc4_serial_addr) {
 			iounmap(soft->is_ioc4_serial_addr);
-			release_region((unsigned long)
+			release_mem_region((unsigned long)
 			     soft->is_ioc4_serial_addr,
 				sizeof(struct ioc4_serial));
 		}
@@ -2790,7 +2790,7 @@ ioc4_serial_attach_one(struct ioc4_driver_data *idd)
 	/* request serial registers */
 	tmp_addr1 = idd->idd_bar0 + IOC4_SERIAL_OFFSET;
 
-	if (!request_region(tmp_addr1, sizeof(struct ioc4_serial),
+	if (!request_mem_region(tmp_addr1, sizeof(struct ioc4_serial),
 					"sioc4_uart")) {
 		printk(KERN_WARNING
 			"ioc4 (%p): unable to get request region for "
@@ -2889,7 +2889,7 @@ out3:
 out2:
 	if (serial)
 		iounmap(serial);
-	release_region(tmp_addr1, sizeof(struct ioc4_serial));
+	release_mem_region(tmp_addr1, sizeof(struct ioc4_serial));
 out1:
 
 	return ret;
diff --git a/drivers/serial/serial_txx9.c b/drivers/serial/serial_txx9.c
index 7186a82..f4440d3 100644
--- a/drivers/serial/serial_txx9.c
+++ b/drivers/serial/serial_txx9.c
@@ -37,6 +37,7 @@
  *	1.06	Do not insert a char caused previous overrun.
  *		Fix some spin_locks.
  *		Do not call uart_add_one_port for absent ports.
+ *	1.07	Use CONFIG_SERIAL_TXX9_NR_UARTS.  Cleanup.
  */
 
 #if defined(CONFIG_SERIAL_TXX9_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
@@ -58,9 +59,8 @@
 #include <linux/mutex.h>
 
 #include <asm/io.h>
-#include <asm/irq.h>
 
-static char *serial_version = "1.06";
+static char *serial_version = "1.07";
 static char *serial_name = "TX39/49 Serial driver";
 
 #define PASS_LIMIT	256
@@ -88,12 +88,7 @@ static char *serial_name = "TX39/49 Serial driver";
 /*
  * Number of serial ports
  */
-#ifdef ENABLE_SERIAL_TXX9_PCI
-#define NR_PCI_BOARDS	4
-#define UART_NR  (4 + NR_PCI_BOARDS)
-#else
-#define UART_NR  4
-#endif
+#define UART_NR  CONFIG_SERIAL_TXX9_NR_UARTS
 
 #define HIGH_BITS_OFFSET	((sizeof(long)-sizeof(int))*8)
 
@@ -987,6 +982,7 @@ int __init early_serial_txx9_setup(struct uart_port *port)
 }
 
 #ifdef ENABLE_SERIAL_TXX9_PCI
+#ifdef CONFIG_PM
 /**
  *	serial_txx9_suspend_port - suspend one serial port
  *	@line:  serial line number
@@ -1008,6 +1004,7 @@ static void serial_txx9_resume_port(int line)
 {
 	uart_resume_port(&serial_txx9_reg, &serial_txx9_ports[line].port);
 }
+#endif
 
 static DEFINE_MUTEX(serial_txx9_mutex);
 
@@ -1118,6 +1115,7 @@ static void __devexit pciserial_txx9_remove_one(struct pci_dev *dev)
 	}
 }
 
+#ifdef CONFIG_PM
 static int pciserial_txx9_suspend_one(struct pci_dev *dev, pm_message_t state)
 {
 	int line = (int)(long)pci_get_drvdata(dev);
@@ -1142,11 +1140,10 @@ static int pciserial_txx9_resume_one(struct pci_dev *dev)
 	}
 	return 0;
 }
+#endif
 
-static struct pci_device_id serial_txx9_pci_tbl[] = {
-	{	PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC86C001_MISC,
-		PCI_ANY_ID, PCI_ANY_ID,
-		0, 0, 0 },
+static const struct pci_device_id serial_txx9_pci_tbl[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC86C001_MISC) },
 	{ 0, }
 };
 
@@ -1154,8 +1151,10 @@ static struct pci_driver serial_txx9_pci_driver = {
 	.name		= "serial_txx9",
 	.probe		= pciserial_txx9_init_one,
 	.remove		= __devexit_p(pciserial_txx9_remove_one),
+#ifdef CONFIG_PM
 	.suspend	= pciserial_txx9_suspend_one,
 	.resume		= pciserial_txx9_resume_one,
+#endif
 	.id_table	= serial_txx9_pci_tbl,
 };
 
diff --git a/drivers/serial/uartlite.c b/drivers/serial/uartlite.c
index db8607e..f5051cf 100644
--- a/drivers/serial/uartlite.c
+++ b/drivers/serial/uartlite.c
@@ -256,7 +256,7 @@ static void ulite_release_port(struct uart_port *port)
 {
 	release_mem_region(port->mapbase, ULITE_REGION);
 	iounmap(port->membase);
-	port->membase = 0;
+	port->membase = NULL;
 }
 
 static int ulite_request_port(struct uart_port *port)
@@ -438,7 +438,7 @@ static int __devinit ulite_probe(struct platform_device *pdev)
 	port->iotype	= UPIO_MEM;
 	port->iobase	= 1; /* mark port in use */
 	port->mapbase	= res->start;
-	port->membase	= 0;
+	port->membase	= NULL;
 	port->ops	= &ulite_ops;
 	port->irq	= res2->start;
 	port->flags	= UPF_BOOT_AUTOCONF;
@@ -462,7 +462,7 @@ static int ulite_remove(struct platform_device *pdev)
 		uart_remove_one_port(&ulite_uart_driver, port);
 
 	/* mark port as free */
-	port->membase = 0;
+	port->membase = NULL;
 
 	return 0;
 }