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-rw-r--r--arch/powerpc/kernel/vdso.c2
-rw-r--r--drivers/ata/Kconfig10
-rw-r--r--drivers/ata/ahci.c23
-rw-r--r--drivers/ata/ata_piix.c7
-rw-r--r--drivers/ata/libata-core.c4
-rw-r--r--drivers/ata/libata-scsi.c16
-rw-r--r--drivers/ata/libata.h2
-rw-r--r--drivers/ata/sata_mv.c21
-rw-r--r--drivers/serial/bfin_5xx.c40
-rw-r--r--drivers/watchdog/hpwdt.c155
-rw-r--r--include/asm-blackfin/mach-bf527/bfin_serial_5xx.h2
-rw-r--r--include/asm-blackfin/mach-bf533/bfin_serial_5xx.h2
-rw-r--r--include/asm-blackfin/mach-bf537/bfin_serial_5xx.h2
-rw-r--r--include/asm-blackfin/mach-bf548/bfin_serial_5xx.h6
-rw-r--r--include/asm-blackfin/mach-bf561/bfin_serial_5xx.h2
-rw-r--r--mm/memory.c17
-rw-r--r--mm/migrate.c10
17 files changed, 196 insertions, 125 deletions
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index c21a626af67..ce245a850db 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -142,7 +142,7 @@ static void dump_one_vdso_page(struct page *pg, struct page *upg)
printk("kpg: %p (c:%d,f:%08lx)", __va(page_to_pfn(pg) << PAGE_SHIFT),
page_count(pg),
pg->flags);
- if (upg/* && pg != upg*/) {
+ if (upg && !IS_ERR(upg) /* && pg != upg*/) {
printk(" upg: %p (c:%d,f:%08lx)", __va(page_to_pfn(upg)
<< PAGE_SHIFT),
page_count(upg),
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 9bf2986a278..ae8494944c4 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -651,9 +651,17 @@ config PATA_WINBOND_VLB
Support for the Winbond W83759A controller on Vesa Local Bus
systems.
+config HAVE_PATA_PLATFORM
+ bool
+ help
+ This is an internal configuration node for any machine that
+ uses pata-platform driver to enable the relevant driver in the
+ configuration structure without having to submit endless patches
+ to update the PATA_PLATFORM entry.
+
config PATA_PLATFORM
tristate "Generic platform device PATA support"
- depends on EMBEDDED || ARCH_RPC || PPC
+ depends on EMBEDDED || ARCH_RPC || PPC || HAVE_PATA_PLATFORM
help
This option enables support for generic directly connected ATA
devices commonly found on embedded systems.
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 966ab401e52..6a4a2a25d97 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -90,6 +90,7 @@ enum {
board_ahci_mv = 4,
board_ahci_sb700 = 5,
board_ahci_mcp65 = 6,
+ board_ahci_nopmp = 7,
/* global controller registers */
HOST_CAP = 0x00, /* host capabilities */
@@ -401,6 +402,14 @@ static const struct ata_port_info ahci_port_info[] = {
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
},
+ /* board_ahci_nopmp */
+ {
+ AHCI_HFLAGS (AHCI_HFLAG_NO_PMP),
+ .flags = AHCI_FLAG_COMMON,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .udma_mask = ATA_UDMA6,
+ .port_ops = &ahci_ops,
+ },
};
static const struct pci_device_id ahci_pci_tbl[] = {
@@ -525,9 +534,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(NVIDIA, 0x0bc7), board_ahci }, /* MCP7B */
/* SiS */
- { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
- { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 966 */
- { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
+ { PCI_VDEVICE(SI, 0x1184), board_ahci_nopmp }, /* SiS 966 */
+ { PCI_VDEVICE(SI, 0x1185), board_ahci_nopmp }, /* SiS 968 */
+ { PCI_VDEVICE(SI, 0x0186), board_ahci_nopmp }, /* SiS 968 */
/* Marvell */
{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
@@ -653,6 +662,14 @@ static void ahci_save_initial_config(struct pci_dev *pdev,
cap &= ~HOST_CAP_PMP;
}
+ if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361 &&
+ port_map != 1) {
+ dev_printk(KERN_INFO, &pdev->dev,
+ "JMB361 has only one port, port_map 0x%x -> 0x%x\n",
+ port_map, 1);
+ port_map = 1;
+ }
+
/*
* Temporary Marvell 6145 hack: PATA port presence
* is asserted through the standard AHCI port
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 81b7ae37695..a90ae03f56b 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -1043,6 +1043,13 @@ static int piix_broken_suspend(void)
},
},
{
+ .ident = "TECRA M4",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M4"),
+ },
+ },
+ {
.ident = "TECRA M5",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index cc816ca623d..303fc0d2b97 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4297,7 +4297,7 @@ void ata_sg_clean(struct ata_queued_cmd *qc)
}
/**
- * ata_check_atapi_dma - Check whether ATAPI DMA can be supported
+ * atapi_check_dma - Check whether ATAPI DMA can be supported
* @qc: Metadata associated with taskfile to check
*
* Allow low-level driver to filter ATA PACKET commands, returning
@@ -4310,7 +4310,7 @@ void ata_sg_clean(struct ata_queued_cmd *qc)
* RETURNS: 0 when ATAPI DMA can be used
* nonzero otherwise
*/
-int ata_check_atapi_dma(struct ata_queued_cmd *qc)
+int atapi_check_dma(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 2e6e1622dc6..57a43649a46 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2343,8 +2343,8 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
{
struct scsi_cmnd *scmd = qc->scsicmd;
struct ata_device *dev = qc->dev;
- int using_pio = (dev->flags & ATA_DFLAG_PIO);
int nodata = (scmd->sc_data_direction == DMA_NONE);
+ int using_pio = !nodata && (dev->flags & ATA_DFLAG_PIO);
unsigned int nbytes;
memset(qc->cdb, 0, dev->cdb_len);
@@ -2362,7 +2362,7 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
ata_qc_set_pc_nbytes(qc);
/* check whether ATAPI DMA is safe */
- if (!using_pio && ata_check_atapi_dma(qc))
+ if (!nodata && !using_pio && atapi_check_dma(qc))
using_pio = 1;
/* Some controller variants snoop this value for Packet
@@ -2402,13 +2402,11 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
qc->tf.lbam = (nbytes & 0xFF);
qc->tf.lbah = (nbytes >> 8);
- if (using_pio || nodata) {
- /* no data, or PIO data xfer */
- if (nodata)
- qc->tf.protocol = ATAPI_PROT_NODATA;
- else
- qc->tf.protocol = ATAPI_PROT_PIO;
- } else {
+ if (nodata)
+ qc->tf.protocol = ATAPI_PROT_NODATA;
+ else if (using_pio)
+ qc->tf.protocol = ATAPI_PROT_PIO;
+ else {
/* DMA data xfer */
qc->tf.protocol = ATAPI_PROT_DMA;
qc->tf.feature |= ATAPI_PKT_DMA;
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 4514283937e..1cf803adbc9 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -106,7 +106,7 @@ extern void ata_sg_clean(struct ata_queued_cmd *qc);
extern void ata_qc_free(struct ata_queued_cmd *qc);
extern void ata_qc_issue(struct ata_queued_cmd *qc);
extern void __ata_qc_complete(struct ata_queued_cmd *qc);
-extern int ata_check_atapi_dma(struct ata_queued_cmd *qc);
+extern int atapi_check_dma(struct ata_queued_cmd *qc);
extern void swap_buf_le16(u16 *buf, unsigned int buf_words);
extern void ata_dev_init(struct ata_device *dev);
extern void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp);
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 60391e9a84d..28092bc5014 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1322,6 +1322,9 @@ static int mv_port_start(struct ata_port *ap)
goto out_port_free_dma_mem;
memset(pp->crpb, 0, MV_CRPB_Q_SZ);
+ /* 6041/6081 Rev. "C0" (and newer) are okay with async notify */
+ if (hpriv->hp_flags & MV_HP_ERRATA_60X1C0)
+ ap->flags |= ATA_FLAG_AN;
/*
* For GEN_I, there's no NCQ, so we only allocate a single sg_tbl.
* For later hardware, we need one unique sg_tbl per NCQ tag.
@@ -1592,6 +1595,24 @@ static unsigned int mv_qc_issue(struct ata_queued_cmd *qc)
if ((qc->tf.protocol != ATA_PROT_DMA) &&
(qc->tf.protocol != ATA_PROT_NCQ)) {
+ static int limit_warnings = 10;
+ /*
+ * Errata SATA#16, SATA#24: warn if multiple DRQs expected.
+ *
+ * Someday, we might implement special polling workarounds
+ * for these, but it all seems rather unnecessary since we
+ * normally use only DMA for commands which transfer more
+ * than a single block of data.
+ *
+ * Much of the time, this could just work regardless.
+ * So for now, just log the incident, and allow the attempt.
+ */
+ if (limit_warnings && (qc->nbytes / qc->sect_size) > 1) {
+ --limit_warnings;
+ ata_link_printk(qc->dev->link, KERN_WARNING, DRV_NAME
+ ": attempting PIO w/multiple DRQ: "
+ "this may fail due to h/w errata\n");
+ }
/*
* We're about to send a non-EDMA capable command to the
* port. Turn off EDMA so there won't be problems accessing
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index f20952c43cb..fd9bb777df2 100644
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -49,6 +49,7 @@
#define DMA_RX_YCOUNT (PAGE_SIZE / DMA_RX_XCOUNT)
#define DMA_RX_FLUSH_JIFFIES (HZ / 50)
+#define CTS_CHECK_JIFFIES (HZ / 50)
#ifdef CONFIG_SERIAL_BFIN_DMA
static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart);
@@ -290,11 +291,6 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart)
{
struct circ_buf *xmit = &uart->port.info->xmit;
- if (uart->port.x_char) {
- UART_PUT_CHAR(uart, uart->port.x_char);
- uart->port.icount.tx++;
- uart->port.x_char = 0;
- }
/*
* Check the modem control lines before
* transmitting anything.
@@ -306,6 +302,12 @@ static void bfin_serial_tx_chars(struct bfin_serial_port *uart)
return;
}
+ if (uart->port.x_char) {
+ UART_PUT_CHAR(uart, uart->port.x_char);
+ uart->port.icount.tx++;
+ uart->port.x_char = 0;
+ }
+
while ((UART_GET_LSR(uart) & THRE) && xmit->tail != xmit->head) {
UART_PUT_CHAR(uart, xmit->buf[xmit->tail]);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
@@ -345,15 +347,6 @@ static irqreturn_t bfin_serial_tx_int(int irq, void *dev_id)
}
#endif
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
-static void bfin_serial_do_work(struct work_struct *work)
-{
- struct bfin_serial_port *uart = container_of(work, struct bfin_serial_port, cts_workqueue);
-
- bfin_serial_mctrl_check(uart);
-}
-#endif
-
#ifdef CONFIG_SERIAL_BFIN_DMA
static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
{
@@ -361,6 +354,12 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
uart->tx_done = 0;
+ /*
+ * Check the modem control lines before
+ * transmitting anything.
+ */
+ bfin_serial_mctrl_check(uart);
+
if (uart_circ_empty(xmit) || uart_tx_stopped(&uart->port)) {
uart->tx_count = 0;
uart->tx_done = 1;
@@ -373,12 +372,6 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart)
uart->port.x_char = 0;
}
- /*
- * Check the modem control lines before
- * transmitting anything.
- */
- bfin_serial_mctrl_check(uart);
-
uart->tx_count = CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE);
if (uart->tx_count > (UART_XMIT_SIZE - xmit->tail))
uart->tx_count = UART_XMIT_SIZE - xmit->tail;
@@ -565,7 +558,10 @@ static void bfin_serial_mctrl_check(struct bfin_serial_port *uart)
uart_handle_cts_change(&uart->port, status & TIOCM_CTS);
if (!(status & TIOCM_CTS)) {
tty->hw_stopped = 1;
- schedule_work(&uart->cts_workqueue);
+ uart->cts_timer.data = (unsigned long)(uart);
+ uart->cts_timer.function = (void *)bfin_serial_mctrl_check;
+ uart->cts_timer.expires = jiffies + CTS_CHECK_JIFFIES;
+ add_timer(&(uart->cts_timer));
} else {
tty->hw_stopped = 0;
}
@@ -885,7 +881,7 @@ static void __init bfin_serial_init_ports(void)
init_timer(&(bfin_serial_ports[i].rx_dma_timer));
#endif
#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- INIT_WORK(&bfin_serial_ports[i].cts_workqueue, bfin_serial_do_work);
+ init_timer(&(bfin_serial_ports[i].cts_timer));
bfin_serial_ports[i].cts_pin =
bfin_serial_resource[i].uart_cts_pin;
bfin_serial_ports[i].rts_pin =
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 2686f3eaeed..eaa3f2a79ff 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -140,49 +140,53 @@ static struct pci_device_id hpwdt_devices[] = {
};
MODULE_DEVICE_TABLE(pci, hpwdt_devices);
+extern asmlinkage void asminline_call(struct cmn_registers *pi86Regs, unsigned long *pRomEntry);
+
#ifndef CONFIG_X86_64
/* --32 Bit Bios------------------------------------------------------------ */
#define HPWDT_ARCH 32
-asmlinkage void asminline_call(struct cmn_registers *pi86Regs,
- unsigned long *pRomEntry)
-{
- asm("pushl %ebp \n\t"
- "movl %esp, %ebp \n\t"
- "pusha \n\t"
- "pushf \n\t"
- "push %es \n\t"
- "push %ds \n\t"
- "pop %es \n\t"
- "movl 8(%ebp),%eax \n\t"
- "movl 4(%eax),%ebx \n\t"
- "movl 8(%eax),%ecx \n\t"
- "movl 12(%eax),%edx \n\t"
- "movl 16(%eax),%esi \n\t"
- "movl 20(%eax),%edi \n\t"
- "movl (%eax),%eax \n\t"
- "push %cs \n\t"
- "call *12(%ebp) \n\t"
- "pushf \n\t"
- "pushl %eax \n\t"
- "movl 8(%ebp),%eax \n\t"
- "movl %ebx,4(%eax) \n\t"
- "movl %ecx,8(%eax) \n\t"
- "movl %edx,12(%eax) \n\t"
- "movl %esi,16(%eax) \n\t"
- "movl %edi,20(%eax) \n\t"
- "movw %ds,24(%eax) \n\t"
- "movw %es,26(%eax) \n\t"
- "popl %ebx \n\t"
- "movl %ebx,(%eax) \n\t"
- "popl %ebx \n\t"
- "movl %ebx,28(%eax) \n\t"
- "pop %es \n\t"
- "popf \n\t"
- "popa \n\t"
- "leave \n\t" "ret");
-}
+asm(".text \n\t"
+ ".align 4 \n"
+ "asminline_call: \n\t"
+ "pushl %ebp \n\t"
+ "movl %esp, %ebp \n\t"
+ "pusha \n\t"
+ "pushf \n\t"
+ "push %es \n\t"
+ "push %ds \n\t"
+ "pop %es \n\t"
+ "movl 8(%ebp),%eax \n\t"
+ "movl 4(%eax),%ebx \n\t"
+ "movl 8(%eax),%ecx \n\t"
+ "movl 12(%eax),%edx \n\t"
+ "movl 16(%eax),%esi \n\t"
+ "movl 20(%eax),%edi \n\t"
+ "movl (%eax),%eax \n\t"
+ "push %cs \n\t"
+ "call *12(%ebp) \n\t"
+ "pushf \n\t"
+ "pushl %eax \n\t"
+ "movl 8(%ebp),%eax \n\t"
+ "movl %ebx,4(%eax) \n\t"
+ "movl %ecx,8(%eax) \n\t"
+ "movl %edx,12(%eax) \n\t"
+ "movl %esi,16(%eax) \n\t"
+ "movl %edi,20(%eax) \n\t"
+ "movw %ds,24(%eax) \n\t"
+ "movw %es,26(%eax) \n\t"
+ "popl %ebx \n\t"
+ "movl %ebx,(%eax) \n\t"
+ "popl %ebx \n\t"
+ "movl %ebx,28(%eax) \n\t"
+ "pop %es \n\t"
+ "popf \n\t"
+ "popa \n\t"
+ "leave \n\t"
+ "ret \n\t"
+ ".previous");
+
/*
* cru_detect
@@ -333,43 +337,44 @@ static int __devinit detect_cru_service(void)
#define HPWDT_ARCH 64
-asmlinkage void asminline_call(struct cmn_registers *pi86Regs,
- unsigned long *pRomEntry)
-{
- asm("pushq %rbp \n\t"
- "movq %rsp, %rbp \n\t"
- "pushq %rax \n\t"
- "pushq %rbx \n\t"
- "pushq %rdx \n\t"
- "pushq %r12 \n\t"
- "pushq %r9 \n\t"
- "movq %rsi, %r12 \n\t"
- "movq %rdi, %r9 \n\t"
- "movl 4(%r9),%ebx \n\t"
- "movl 8(%r9),%ecx \n\t"
- "movl 12(%r9),%edx \n\t"
- "movl 16(%r9),%esi \n\t"
- "movl 20(%r9),%edi \n\t"
- "movl (%r9),%eax \n\t"
- "call *%r12 \n\t"
- "pushfq \n\t"
- "popq %r12 \n\t"
- "popfq \n\t"
- "movl %eax, (%r9) \n\t"
- "movl %ebx, 4(%r9) \n\t"
- "movl %ecx, 8(%r9) \n\t"
- "movl %edx, 12(%r9) \n\t"
- "movl %esi, 16(%r9) \n\t"
- "movl %edi, 20(%r9) \n\t"
- "movq %r12, %rax \n\t"
- "movl %eax, 28(%r9) \n\t"
- "popq %r9 \n\t"
- "popq %r12 \n\t"
- "popq %rdx \n\t"
- "popq %rbx \n\t"
- "popq %rax \n\t"
- "leave \n\t" "ret");
-}
+asm(".text \n\t"
+ ".align 4 \n"
+ "asminline_call: \n\t"
+ "pushq %rbp \n\t"
+ "movq %rsp, %rbp \n\t"
+ "pushq %rax \n\t"
+ "pushq %rbx \n\t"
+ "pushq %rdx \n\t"
+ "pushq %r12 \n\t"
+ "pushq %r9 \n\t"
+ "movq %rsi, %r12 \n\t"
+ "movq %rdi, %r9 \n\t"
+ "movl 4(%r9),%ebx \n\t"
+ "movl 8(%r9),%ecx \n\t"
+ "movl 12(%r9),%edx \n\t"
+ "movl 16(%r9),%esi \n\t"
+ "movl 20(%r9),%edi \n\t"
+ "movl (%r9),%eax \n\t"
+ "call *%r12 \n\t"
+ "pushfq \n\t"
+ "popq %r12 \n\t"
+ "popfq \n\t"
+ "movl %eax, (%r9) \n\t"
+ "movl %ebx, 4(%r9) \n\t"
+ "movl %ecx, 8(%r9) \n\t"
+ "movl %edx, 12(%r9) \n\t"
+ "movl %esi, 16(%r9) \n\t"
+ "movl %edi, 20(%r9) \n\t"
+ "movq %r12, %rax \n\t"
+ "movl %eax, 28(%r9) \n\t"
+ "popq %r9 \n\t"
+ "popq %r12 \n\t"
+ "popq %rdx \n\t"
+ "popq %rbx \n\t"
+ "popq %rax \n\t"
+ "leave \n\t"
+ "ret \n\t"
+ ".previous");
/*
* dmi_find_cru
diff --git a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
index 96bd09e31e3..2526b6ed6fa 100644
--- a/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf527/bfin_serial_5xx.h
@@ -96,7 +96,7 @@ struct bfin_serial_port {
struct work_struct tx_dma_workqueue;
#endif
#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- struct work_struct cts_workqueue;
+ struct timer_list cts_timer;
int cts_pin;
int rts_pin;
#endif
diff --git a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
index e924569ad1d..ebf592b59aa 100644
--- a/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf533/bfin_serial_5xx.h
@@ -88,7 +88,7 @@ struct bfin_serial_port {
# endif
#endif
#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- struct work_struct cts_workqueue;
+ struct timer_list cts_timer;
int cts_pin;
int rts_pin;
#endif
diff --git a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
index 41d7b6490bb..1bf56ffa22f 100644
--- a/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf537/bfin_serial_5xx.h
@@ -96,7 +96,7 @@ struct bfin_serial_port {
struct work_struct tx_dma_workqueue;
#endif
#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- struct work_struct cts_workqueue;
+ struct timer_list cts_timer;
int cts_pin;
int rts_pin;
#endif
diff --git a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
index 59b4ad4e5b4..5e29446a8e0 100644
--- a/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf548/bfin_serial_5xx.h
@@ -99,7 +99,7 @@ struct bfin_serial_port {
struct work_struct tx_dma_workqueue;
#endif
#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- struct work_struct cts_workqueue;
+ struct timer_list cts_timer;
int cts_pin;
int rts_pin;
#endif
@@ -187,7 +187,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
#ifdef CONFIG_BFIN_UART1_CTSRTS
peripheral_request(P_UART1_RTS, DRIVER_NAME);
- peripheral_request(P_UART1_CTS DRIVER_NAME);
+ peripheral_request(P_UART1_CTS, DRIVER_NAME);
#endif
#endif
@@ -202,7 +202,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
#ifdef CONFIG_BFIN_UART3_CTSRTS
peripheral_request(P_UART3_RTS, DRIVER_NAME);
- peripheral_request(P_UART3_CTS DRIVER_NAME);
+ peripheral_request(P_UART3_CTS, DRIVER_NAME);
#endif
#endif
SSYNC();
diff --git a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
index 30d90b580f1..8aa02780e64 100644
--- a/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
+++ b/include/asm-blackfin/mach-bf561/bfin_serial_5xx.h
@@ -88,7 +88,7 @@ struct bfin_serial_port {
# endif
#endif
#ifdef CONFIG_SERIAL_BFIN_CTSRTS
- struct work_struct cts_workqueue;
+ struct timer_list cts_timer;
int cts_pin;
int rts_pin;
#endif
diff --git a/mm/memory.c b/mm/memory.c
index 19e0ae9beec..9aefaae4685 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -999,17 +999,15 @@ struct page *follow_page(struct vm_area_struct *vma, unsigned long address,
goto no_page_table;
ptep = pte_offset_map_lock(mm, pmd, address, &ptl);
- if (!ptep)
- goto out;
pte = *ptep;
if (!pte_present(pte))
- goto unlock;
+ goto no_page;
if ((flags & FOLL_WRITE) && !pte_write(pte))
goto unlock;
page = vm_normal_page(vma, address, pte);
if (unlikely(!page))
- goto unlock;
+ goto bad_page;
if (flags & FOLL_GET)
get_page(page);
@@ -1024,6 +1022,15 @@ unlock:
out:
return page;
+bad_page:
+ pte_unmap_unlock(ptep, ptl);
+ return ERR_PTR(-EFAULT);
+
+no_page:
+ pte_unmap_unlock(ptep, ptl);
+ if (!pte_none(pte))
+ return page;
+ /* Fall through to ZERO_PAGE handling */
no_page_table:
/*
* When core dumping an enormous anonymous area that nobody
@@ -1159,6 +1166,8 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
cond_resched();
}
+ if (IS_ERR(page))
+ return i ? i : PTR_ERR(page);
if (pages) {
pages[i] = page;
diff --git a/mm/migrate.c b/mm/migrate.c
index 449d77d409f..112bcaeaa10 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -865,6 +865,11 @@ static int do_move_pages(struct mm_struct *mm, struct page_to_node *pm,
goto set_status;
page = follow_page(vma, pp->addr, FOLL_GET);
+
+ err = PTR_ERR(page);
+ if (IS_ERR(page))
+ goto set_status;
+
err = -ENOENT;
if (!page)
goto set_status;
@@ -928,6 +933,11 @@ static int do_pages_stat(struct mm_struct *mm, struct page_to_node *pm)
goto set_status;
page = follow_page(vma, pm->addr, 0);
+
+ err = PTR_ERR(page);
+ if (IS_ERR(page))
+ goto set_status;
+
err = -ENOENT;
/* Use PageReserved to check for zero page */
if (!page || PageReserved(page))
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 21:39:31 +0000