Merge branch 'master' into next

35 files changed, 126 insertions, 78 deletions

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 08a6f50ae791..6aad99ec4e0f 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -323,7 +323,7 @@ config SPECIALIX
 
 config SX
         tristate "Specialix SX (and SI) card support"
-        depends on SERIAL_NONSTANDARD && (PCI || EISA || ISA)
+        depends on SERIAL_NONSTANDARD && (PCI || EISA || ISA) && BROKEN
         help
           This is a driver for the SX and SI multiport serial cards.
           Please read the file <file:Documentation/serial/sx.txt> for details.
@@ -334,7 +334,7 @@ config SX
 
 config RIO
         tristate "Specialix RIO system support"
-        depends on SERIAL_NONSTANDARD
+        depends on SERIAL_NONSTANDARD && BROKEN
         help
           This is a driver for the Specialix RIO, a smart serial card which
           drives an outboard box that can support up to 128 ports.  Product
@@ -395,7 +395,7 @@ config NOZOMI
 
 config A2232
         tristate "Commodore A2232 serial support (EXPERIMENTAL)"
-        depends on EXPERIMENTAL && ZORRO && BROKEN_ON_SMP
+        depends on EXPERIMENTAL && ZORRO && BROKEN
         ---help---
           This option supports the 2232 7-port serial card shipped with the
           Amiga 2000 and other Zorro-bus machines, dating from 1989.  At
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 4068467ce7b9..3cb56a049e24 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -62,6 +62,7 @@
 #define PCI_DEVICE_ID_INTEL_IGDNG_D_IG      0x0042
 #define PCI_DEVICE_ID_INTEL_IGDNG_M_HB      0x0044
 #define PCI_DEVICE_ID_INTEL_IGDNG_MA_HB     0x0062
+#define PCI_DEVICE_ID_INTEL_IGDNG_MC2_HB    0x006a
 #define PCI_DEVICE_ID_INTEL_IGDNG_M_IG      0x0046
 
 /* cover 915 and 945 variants */
@@ -96,7 +97,8 @@
                 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_B43_HB || \
                 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_D_HB || \
                 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_M_HB || \
-                agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_MA_HB)
+                agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_MA_HB || \
+                agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDNG_MC2_HB)
 
 extern int agp_memory_reserved;
 
@@ -1161,12 +1163,6 @@ static int intel_i915_configure(void)
 
         intel_i9xx_setup_flush();
 
-#ifdef USE_PCI_DMA_API 
-        if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(36)))
-                dev_err(&intel_private.pcidev->dev,
-                        "set gfx device dma mask 36bit failed!\n");
-#endif
-
         return 0;
 }
 
@@ -1364,6 +1360,7 @@ static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size)
         case PCI_DEVICE_ID_INTEL_IGDNG_D_HB:
         case PCI_DEVICE_ID_INTEL_IGDNG_M_HB:
         case PCI_DEVICE_ID_INTEL_IGDNG_MA_HB:
+        case PCI_DEVICE_ID_INTEL_IGDNG_MC2_HB:
                 *gtt_offset = *gtt_size = MB(2);
                 break;
         default:
@@ -2365,6 +2362,8 @@ static const struct intel_driver_description {
             "IGDNG/M", NULL, &intel_i965_driver },
         { PCI_DEVICE_ID_INTEL_IGDNG_MA_HB, PCI_DEVICE_ID_INTEL_IGDNG_M_IG, 0,
             "IGDNG/MA", NULL, &intel_i965_driver },
+        { PCI_DEVICE_ID_INTEL_IGDNG_MC2_HB, PCI_DEVICE_ID_INTEL_IGDNG_M_IG, 0,
+            "IGDNG/MC2", NULL, &intel_i965_driver },
         { 0, 0, 0, NULL, NULL, NULL }
 };
 
@@ -2456,6 +2455,11 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
                                 &bridge->mode);
         }
 
+        if (bridge->driver->mask_memory == intel_i965_mask_memory)
+                if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(36)))
+                        dev_err(&intel_private.pcidev->dev,
+                                "set gfx device dma mask 36bit failed!\n");
+
         pci_set_drvdata(pdev, bridge);
         return agp_add_bridge(bridge);
 }
@@ -2561,6 +2565,7 @@ static struct pci_device_id agp_intel_pci_table[] = {
         ID(PCI_DEVICE_ID_INTEL_IGDNG_D_HB),
         ID(PCI_DEVICE_ID_INTEL_IGDNG_M_HB),
         ID(PCI_DEVICE_ID_INTEL_IGDNG_MA_HB),
+        ID(PCI_DEVICE_ID_INTEL_IGDNG_MC2_HB),
         { }
 };
 
diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index 60ab75104da9..1c129211302d 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -217,7 +217,7 @@ static const struct agp_bridge_driver parisc_agp_driver = {
         .configure              = parisc_agp_configure,
         .fetch_size             = parisc_agp_fetch_size,
         .tlb_flush              = parisc_agp_tlbflush,
-        .mask_memory            = parisc_agp_page_mask_memory,
+        .mask_memory            = parisc_agp_mask_memory,
         .masks                  = parisc_agp_masks,
         .agp_enable             = parisc_agp_enable,
         .cache_flush            = global_cache_flush,
diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c
index aaca40283be9..4f568cb9af3f 100644
--- a/drivers/char/apm-emulation.c
+++ b/drivers/char/apm-emulation.c
@@ -393,7 +393,7 @@ static int apm_open(struct inode * inode, struct file * filp)
         return as ? 0 : -ENOMEM;
 }
 
-static struct file_operations apm_bios_fops = {
+static const struct file_operations apm_bios_fops = {
         .owner          = THIS_MODULE,
         .read           = apm_read,
         .poll           = apm_poll,
diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c
index 73a0765344b6..fe2cb2f5db17 100644
--- a/drivers/char/applicom.c
+++ b/drivers/char/applicom.c
@@ -23,6 +23,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/miscdevice.h>
diff --git a/drivers/char/bfin-otp.c b/drivers/char/bfin-otp.c
index e3dd24bff514..836d4f0a876f 100644
--- a/drivers/char/bfin-otp.c
+++ b/drivers/char/bfin-otp.c
@@ -217,7 +217,7 @@ static long bfin_otp_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
 # define bfin_otp_ioctl NULL
 #endif
 
-static struct file_operations bfin_otp_fops = {
+static const struct file_operations bfin_otp_fops = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = bfin_otp_ioctl,
         .read           = bfin_otp_read,
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index df5038bbcbc2..4254457d3911 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -3354,7 +3354,7 @@ static int __init cy_detect_isa(void)
                         continue;
                 }
 #ifdef MODULE
-                if (isparam && irq[i])
+                if (isparam && i < NR_CARDS && irq[i])
                         cy_isa_irq = irq[i];
                 else
 #endif
diff --git a/drivers/char/dtlk.c b/drivers/char/dtlk.c
index 52e06589821d..045c930e6320 100644
--- a/drivers/char/dtlk.c
+++ b/drivers/char/dtlk.c
@@ -56,6 +56,7 @@
 #include <linux/errno.h>        /* for -EBUSY */
 #include <linux/ioport.h>       /* for request_region */
 #include <linux/delay.h>        /* for loops_per_jiffy */
+#include <linux/sched.h>
 #include <linux/smp_lock.h>     /* cycle_kernel_lock() */
 #include <asm/io.h>             /* for inb_p, outb_p, inb, outb, etc. */
 #include <asm/uaccess.h>        /* for get_user, etc. */
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 9d589e3144de..dde5134713e2 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -30,6 +30,7 @@
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/init.h>
+#include <linux/sched.h>
 #include <linux/serial.h>
 #include <linux/delay.h>
 #include <linux/ctype.h>
diff --git a/drivers/char/generic_serial.c b/drivers/char/generic_serial.c
index 9e4e569dc00d..d400cbd280f2 100644
--- a/drivers/char/generic_serial.c
+++ b/drivers/char/generic_serial.c
@@ -22,6 +22,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/tty.h>
+#include <linux/sched.h>
 #include <linux/serial.h>
 #include <linux/mm.h>
 #include <linux/generic_serial.h>
diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
index aac0985a572b..31e7c91c2d9d 100644
--- a/drivers/char/genrtc.c
+++ b/drivers/char/genrtc.c
@@ -43,6 +43,7 @@
 #define RTC_VERSION     "1.07"
 
 #include <linux/module.h>
+#include <linux/sched.h>
 #include <linux/errno.h>
 #include <linux/miscdevice.h>
 #include <linux/fcntl.h>
diff --git a/drivers/char/hvc_xen.c b/drivers/char/hvc_xen.c
index eba999f8598d..a6ee32b599a8 100644
--- a/drivers/char/hvc_xen.c
+++ b/drivers/char/hvc_xen.c
@@ -55,7 +55,7 @@ static inline void notify_daemon(void)
         notify_remote_via_evtchn(xen_start_info->console.domU.evtchn);
 }
 
-static int write_console(uint32_t vtermno, const char *data, int len)
+static int __write_console(const char *data, int len)
 {
         struct xencons_interface *intf = xencons_interface();
         XENCONS_RING_IDX cons, prod;
@@ -76,6 +76,29 @@ static int write_console(uint32_t vtermno, const char *data, int len)
         return sent;
 }
 
+static int write_console(uint32_t vtermno, const char *data, int len)
+{
+        int ret = len;
+
+        /*
+         * Make sure the whole buffer is emitted, polling if
+         * necessary.  We don't ever want to rely on the hvc daemon
+         * because the most interesting console output is when the
+         * kernel is crippled.
+         */
+        while (len) {
+                int sent = __write_console(data, len);
+                
+                data += sent;
+                len -= sent;
+
+                if (unlikely(len))
+                        HYPERVISOR_sched_op(SCHEDOP_yield, NULL);
+        }
+
+        return ret;
+}
+
 static int read_console(uint32_t vtermno, char *buf, int len)
 {
         struct xencons_interface *intf = xencons_interface();
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 00dd3de1be51..06aad0831c73 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -116,7 +116,7 @@ static int __devinit omap_rng_probe(struct platform_device *pdev)
         if (!res)
                 return -ENOENT;
 
-        mem = request_mem_region(res->start, res->end - res->start + 1,
+        mem = request_mem_region(res->start, resource_size(res),
                                  pdev->name);
         if (mem == NULL) {
                 ret = -EBUSY;
@@ -124,7 +124,7 @@ static int __devinit omap_rng_probe(struct platform_device *pdev)
         }
 
         dev_set_drvdata(&pdev->dev, mem);
-        rng_base = ioremap(res->start, res->end - res->start + 1);
+        rng_base = ioremap(res->start, resource_size(res));
         if (!rng_base) {
                 ret = -ENOMEM;
                 goto err_ioremap;
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index 962968f05b94..915157fcff98 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -21,7 +21,6 @@
 #include <linux/scatterlist.h>
 #include <linux/spinlock.h>
 #include <linux/virtio.h>
-#include <linux/virtio_ids.h>
 #include <linux/virtio_rng.h>
 
 /* The host will fill any buffer we give it with sweet, sweet randomness.  We
@@ -117,7 +116,7 @@ static int virtrng_probe(struct virtio_device *vdev)
         return 0;
 }
 
-static void virtrng_remove(struct virtio_device *vdev)
+static void __devexit virtrng_remove(struct virtio_device *vdev)
 {
         vdev->config->reset(vdev);
         hwrng_unregister(&virtio_hwrng);
diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c
index 41fc11dc921c..65545de3dbf4 100644
--- a/drivers/char/ipmi/ipmi_devintf.c
+++ b/drivers/char/ipmi/ipmi_devintf.c
@@ -36,6 +36,7 @@
 #include <linux/errno.h>
 #include <asm/system.h>
 #include <linux/poll.h>
+#include <linux/sched.h>
 #include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/ipmi.h>
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 09050797c76a..ec5e3f8df648 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -35,6 +35,7 @@
 #include <linux/errno.h>
 #include <asm/system.h>
 #include <linux/poll.h>
+#include <linux/sched.h>
 #include <linux/spinlock.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index ab2f3349c5c4..402838f4083e 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -19,6 +19,7 @@
 /*****************************************************************************/
 
 #include <linux/module.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/smp_lock.h>
 #include <linux/interrupt.h>
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 737be953cc58..950837cf9e9c 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -1249,7 +1249,7 @@ static void kbd_keycode(unsigned int keycode, int down, int hw_raw)
 
         if (keycode >= NR_KEYS)
                 if (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT8)
-                        keysym = K(KT_BRL, keycode - KEY_BRL_DOT1 + 1);
+                        keysym = U(K(KT_BRL, keycode - KEY_BRL_DOT1 + 1));
                 else
                         return;
         else
diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c
index ec58d8c387ff..d3400b20444f 100644
--- a/drivers/char/nozomi.c
+++ b/drivers/char/nozomi.c
@@ -48,6 +48,7 @@
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
+#include <linux/sched.h>
 #include <linux/serial.h>
 #include <linux/interrupt.h>
 #include <linux/kmod.h>
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index 53761cefa915..62f282e67638 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -18,6 +18,7 @@
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/fcntl.h>
+#include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/major.h>
 #include <linux/mm.h>
@@ -261,6 +262,9 @@ done:
         return 0;
 }
 
+/* Traditional BSD devices */
+#ifdef CONFIG_LEGACY_PTYS
+
 static int pty_install(struct tty_driver *driver, struct tty_struct *tty)
 {
         struct tty_struct *o_tty;
@@ -310,24 +314,6 @@ free_mem_out:
         return -ENOMEM;
 }
 
-
-static const struct tty_operations pty_ops = {
-        .install = pty_install,
-        .open = pty_open,
-        .close = pty_close,
-        .write = pty_write,
-        .write_room = pty_write_room,
-        .flush_buffer = pty_flush_buffer,
-        .chars_in_buffer = pty_chars_in_buffer,
-        .unthrottle = pty_unthrottle,
-        .set_termios = pty_set_termios,
-        .resize = pty_resize
-};
-
-/* Traditional BSD devices */
-#ifdef CONFIG_LEGACY_PTYS
-static struct tty_driver *pty_driver, *pty_slave_driver;
-
 static int pty_bsd_ioctl(struct tty_struct *tty, struct file *file,
                          unsigned int cmd, unsigned long arg)
 {
@@ -341,7 +327,12 @@ static int pty_bsd_ioctl(struct tty_struct *tty, struct file *file,
 static int legacy_count = CONFIG_LEGACY_PTY_COUNT;
 module_param(legacy_count, int, 0);
 
-static const struct tty_operations pty_ops_bsd = {
+/*
+ * The master side of a pty can do TIOCSPTLCK and thus
+ * has pty_bsd_ioctl.
+ */
+static const struct tty_operations master_pty_ops_bsd = {
+        .install = pty_install,
         .open = pty_open,
         .close = pty_close,
         .write = pty_write,
@@ -354,8 +345,23 @@ static const struct tty_operations pty_ops_bsd = {
         .resize = pty_resize
 };
 
+static const struct tty_operations slave_pty_ops_bsd = {
+        .install = pty_install,
+        .open = pty_open,
+        .close = pty_close,
+        .write = pty_write,
+        .write_room = pty_write_room,
+        .flush_buffer = pty_flush_buffer,
+        .chars_in_buffer = pty_chars_in_buffer,
+        .unthrottle = pty_unthrottle,
+        .set_termios = pty_set_termios,
+        .resize = pty_resize
+};
+
 static void __init legacy_pty_init(void)
 {
+        struct tty_driver *pty_driver, *pty_slave_driver;
+
         if (legacy_count <= 0)
                 return;
 
@@ -383,7 +389,7 @@ static void __init legacy_pty_init(void)
         pty_driver->init_termios.c_ospeed = 38400;
         pty_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW;
         pty_driver->other = pty_slave_driver;
-        tty_set_operations(pty_driver, &pty_ops);
+        tty_set_operations(pty_driver, &master_pty_ops_bsd);
 
         pty_slave_driver->owner = THIS_MODULE;
         pty_slave_driver->driver_name = "pty_slave";
@@ -399,7 +405,7 @@ static void __init legacy_pty_init(void)
         pty_slave_driver->flags = TTY_DRIVER_RESET_TERMIOS |
                                         TTY_DRIVER_REAL_RAW;
         pty_slave_driver->other = pty_driver;
-        tty_set_operations(pty_slave_driver, &pty_ops);
+        tty_set_operations(pty_slave_driver, &slave_pty_ops_bsd);
 
         if (tty_register_driver(pty_driver))
                 panic("Couldn't register pty driver");
diff --git a/drivers/char/rio/riocmd.c b/drivers/char/rio/riocmd.c
index 01f2654d5a2e..f121357e5af0 100644
--- a/drivers/char/rio/riocmd.c
+++ b/drivers/char/rio/riocmd.c
@@ -32,6 +32,7 @@
 */
 
 #include <linux/module.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/tty.h>
diff --git a/drivers/char/rio/rioctrl.c b/drivers/char/rio/rioctrl.c
index 74339559f0b9..780506326a73 100644
--- a/drivers/char/rio/rioctrl.c
+++ b/drivers/char/rio/rioctrl.c
@@ -31,6 +31,7 @@
 */
 
 #include <linux/module.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
 #include <asm/io.h>
diff --git a/drivers/char/rio/riotty.c b/drivers/char/rio/riotty.c
index 2fb49e89b324..47fab7c33073 100644
--- a/drivers/char/rio/riotty.c
+++ b/drivers/char/rio/riotty.c
@@ -33,6 +33,7 @@
 #define __EXPLICIT_DEF_H__
 
 #include <linux/module.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/tty.h>
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index e0d0f8b2696b..bc4ab3e54550 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -74,6 +74,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/spinlock.h>
+#include <linux/sched.h>
 #include <linux/sysctl.h>
 #include <linux/wait.h>
 #include <linux/bcd.h>
diff --git a/drivers/char/ser_a2232.c b/drivers/char/ser_a2232.c
index 33a2b531802e..9610861d1f5f 100644
--- a/drivers/char/ser_a2232.c
+++ b/drivers/char/ser_a2232.c
@@ -89,6 +89,7 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
+#include <linux/sched.h>
 #include <linux/tty.h>
 
 #include <asm/setup.h>
diff --git a/drivers/char/serial167.c b/drivers/char/serial167.c
index 5942a9d674c0..452370af95de 100644
--- a/drivers/char/serial167.c
+++ b/drivers/char/serial167.c
@@ -220,8 +220,7 @@ static inline int serial_paranoia_check(struct cyclades_port *info, char *name,
                 return 1;
         }
 
-        if ((long)info < (long)(&cy_port[0])
-            || (long)(&cy_port[NR_PORTS]) < (long)info) {
+        if (info < &cy_port[0] || info >= &cy_port[NR_PORTS]) {
                 printk("Warning: cyclades_port out of range for (%s) in %s\n",
                                 name, routine);
                 return 1;
@@ -520,15 +519,13 @@ static irqreturn_t cd2401_tx_interrupt(int irq, void *dev_id)
                 panic("TxInt on debug port!!!");
         }
 #endif
-
-        info = &cy_port[channel];
-
         /* validate the port number (as configured and open) */
         if ((channel < 0) || (NR_PORTS <= channel)) {
                 base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
                 base_addr[CyTEOIR] = CyNOTRANS;
                 return IRQ_HANDLED;
         }
+        info = &cy_port[channel];
         info->last_active = jiffies;
         if (info->tty == 0) {
                 base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index fd3dced97776..8c262aaf7c26 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -36,6 +36,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/sched.h>
 #include <linux/input.h>
 #include <linux/pci.h>
 #include <linux/init.h>
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index 53e504f41b20..db6dcfa35ba0 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -27,6 +27,7 @@
 /*****************************************************************************/
 
 #include <linux/module.h>
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/tty.h>
diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c
index 8f2284be68e1..80ea6bcfffdc 100644
--- a/drivers/char/tlclk.c
+++ b/drivers/char/tlclk.c
@@ -32,6 +32,7 @@
 #include <linux/kernel.h>       /* printk() */
 #include <linux/fs.h>           /* everything... */
 #include <linux/errno.h>        /* error codes */
+#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
diff --git a/drivers/char/tty_buffer.c b/drivers/char/tty_buffer.c
index 3108991c5c8b..66fa4e10d76b 100644
--- a/drivers/char/tty_buffer.c
+++ b/drivers/char/tty_buffer.c
@@ -402,28 +402,26 @@ static void flush_to_ldisc(struct work_struct *work)
                 container_of(work, struct tty_struct, buf.work.work);
         unsigned long   flags;
         struct tty_ldisc *disc;
-        struct tty_buffer *tbuf, *head;
-        char *char_buf;
-        unsigned char *flag_buf;
 
         disc = tty_ldisc_ref(tty);
         if (disc == NULL)       /*  !TTY_LDISC */
                 return;
 
         spin_lock_irqsave(&tty->buf.lock, flags);
-        /* So we know a flush is running */
-        set_bit(TTY_FLUSHING, &tty->flags);
-        head = tty->buf.head;
-        if (head != NULL) {
-                tty->buf.head = NULL;
-                for (;;) {
-                        int count = head->commit - head->read;
+
+        if (!test_and_set_bit(TTY_FLUSHING, &tty->flags)) {
+                struct tty_buffer *head;
+                while ((head = tty->buf.head) != NULL) {
+                        int count;
+                        char *char_buf;
+                        unsigned char *flag_buf;
+
+                        count = head->commit - head->read;
                         if (!count) {
                                 if (head->next == NULL)
                                         break;
-                                tbuf = head;
-                                head = head->next;
-                                tty_buffer_free(tty, tbuf);
+                                tty->buf.head = head->next;
+                                tty_buffer_free(tty, head);
                                 continue;
                         }
                         /* Ldisc or user is trying to flush the buffers
@@ -445,9 +443,9 @@ static void flush_to_ldisc(struct work_struct *work)
                                                         flag_buf, count);
                         spin_lock_irqsave(&tty->buf.lock, flags);
                 }
-                /* Restore the queue head */
-                tty->buf.head = head;
+                clear_bit(TTY_FLUSHING, &tty->flags);
         }
+
         /* We may have a deferred request to flush the input buffer,
            if so pull the chain under the lock and empty the queue */
         if (test_bit(TTY_FLUSHPENDING, &tty->flags)) {
@@ -455,7 +453,6 @@ static void flush_to_ldisc(struct work_struct *work)
                 clear_bit(TTY_FLUSHPENDING, &tty->flags);
                 wake_up(&tty->read_wait);
         }
-        clear_bit(TTY_FLUSHING, &tty->flags);
         spin_unlock_irqrestore(&tty->buf.lock, flags);
 
         tty_ldisc_deref(disc);
@@ -471,7 +468,7 @@ static void flush_to_ldisc(struct work_struct *work)
  */
 void tty_flush_to_ldisc(struct tty_struct *tty)
 {
-        flush_to_ldisc(&tty->buf.work.work);
+        flush_delayed_work(&tty->buf.work);
 }
 
 /**
diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c
index aafdbaebc16a..feb55075819b 100644
--- a/drivers/char/tty_ldisc.c
+++ b/drivers/char/tty_ldisc.c
@@ -518,7 +518,7 @@ static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old)
 static int tty_ldisc_halt(struct tty_struct *tty)
 {
         clear_bit(TTY_LDISC, &tty->flags);
-        return cancel_delayed_work(&tty->buf.work);
+        return cancel_delayed_work_sync(&tty->buf.work);
 }
 
 /**
@@ -756,12 +756,9 @@ void tty_ldisc_hangup(struct tty_struct *tty)
          * N_TTY.
          */
         if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS) {
-                /* Make sure the old ldisc is quiescent */
-                tty_ldisc_halt(tty);
-                flush_scheduled_work();
-
                 /* Avoid racing set_ldisc or tty_ldisc_release */
                 mutex_lock(&tty->ldisc_mutex);
+                tty_ldisc_halt(tty);
                 if (tty->ldisc) {       /* Not yet closed */
                         /* Switch back to N_TTY */
                         tty_ldisc_reinit(tty);
diff --git a/drivers/char/tty_port.c b/drivers/char/tty_port.c
index a4bbb28f10be..c63f3d33914a 100644
--- a/drivers/char/tty_port.c
+++ b/drivers/char/tty_port.c
@@ -219,8 +219,14 @@ int tty_port_block_til_ready(struct tty_port *port,
 
         /* if non-blocking mode is set we can pass directly to open unless
            the port has just hung up or is in another error state */
-        if ((filp->f_flags & O_NONBLOCK) ||
-                        (tty->flags & (1 << TTY_IO_ERROR))) {
+        if (tty->flags & (1 << TTY_IO_ERROR)) {
+                port->flags |= ASYNC_NORMAL_ACTIVE;
+                return 0;
+        }
+        if (filp->f_flags & O_NONBLOCK) {
+                /* Indicate we are open */
+                if (tty->termios->c_cflag & CBAUD)
+                        tty_port_raise_dtr_rts(port);
                 port->flags |= ASYNC_NORMAL_ACTIVE;
                 return 0;
         }
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 0d328b59568d..a035ae39a359 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -31,7 +31,6 @@
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/virtio.h>
-#include <linux/virtio_ids.h>
 #include <linux/virtio_console.h>
 #include "hvc_console.h"
 
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index 29c651ab0d78..6aa10284104a 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -103,8 +103,8 @@ void vt_event_post(unsigned int event, unsigned int old, unsigned int new)
                 ve->event.event = event;
                 /* kernel view is consoles 0..n-1, user space view is
                    console 1..n with 0 meaning current, so we must bias */
-                ve->event.old = old + 1;
-                ve->event.new = new + 1;
+                ve->event.oldev = old + 1;
+                ve->event.newev = new + 1;
                 wake = 1;
                 ve->done = 1;
         }
@@ -186,7 +186,7 @@ int vt_waitactive(int n)
                 vt_event_wait(&vw);
                 if (vw.done == 0)
                         return -EINTR;
-        } while (vw.event.new != n);
+        } while (vw.event.newev != n);
         return 0;
 }
 
@@ -981,8 +981,10 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
                         goto eperm;
 
                 if (copy_from_user(&vsa, (struct vt_setactivate __user *)arg,
-                                                sizeof(struct vt_setactivate)))
-                        return -EFAULT;
+                                        sizeof(struct vt_setactivate))) {
+                        ret = -EFAULT;
+                        goto out;
+                }
                 if (vsa.console == 0 || vsa.console > MAX_NR_CONSOLES)
                         ret = -ENXIO;
                 else {
@@ -1530,7 +1532,7 @@ long vt_compat_ioctl(struct tty_struct *tty, struct file * file,
 
         case PIO_UNIMAP:
         case GIO_UNIMAP:
-                ret = do_unimap_ioctl(cmd, up, perm, vc);
+                ret = compat_unimap_ioctl(cmd, up, perm, vc);
                 break;
 
         /*
diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
index f40ab699860f..4846d50199f3 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
@@ -559,7 +559,7 @@ static int hwicap_release(struct inode *inode, struct file *file)
         return status;
 }
 
-static struct file_operations hwicap_fops = {
+static const struct file_operations hwicap_fops = {
         .owner = THIS_MODULE,
         .write = hwicap_write,
         .read = hwicap_read,