7 files changed, 30 insertions, 28 deletions

diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c
index 977dfb1096a0..f6094ae0ef33 100644
--- a/drivers/char/bsr.c
+++ b/drivers/char/bsr.c
@@ -103,7 +103,7 @@ static ssize_t
 bsr_len_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
         struct bsr_dev *bsr_dev = dev_get_drvdata(dev);
-        return sprintf(buf, "%lu\n", bsr_dev->bsr_len);
+        return sprintf(buf, "%llu\n", bsr_dev->bsr_len);
 }
 
 static struct device_attribute bsr_dev_attrs[] = {
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index 5a8a4c28c867..94e7e3c8c05a 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -318,7 +318,6 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
         } /* else count == 0 */
 
         tty->driver_data = hp;
-        tty->low_latency = 1; /* Makes flushes to ldisc synchronous. */
 
         hp->tty = tty;
 
@@ -764,13 +763,11 @@ struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int data,
                         return ERR_PTR(err);
         }
 
-        hp = kmalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
+        hp = kzalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
                         GFP_KERNEL);
         if (!hp)
                 return ERR_PTR(-ENOMEM);
 
-        memset(hp, 0x00, sizeof(*hp));
-
         hp->vtermno = vtermno;
         hp->data = data;
         hp->ops = ops;
@@ -876,8 +873,11 @@ static int hvc_init(void)
                 goto stop_thread;
         }
 
-        /* FIXME: This mb() seems completely random.  Remove it. */
-        mb();
+        /*
+         * Make sure tty is fully registered before allowing it to be
+         * found by hvc_console_device.
+         */
+        smp_mb();
         hvc_driver = drv;
         return 0;
 
diff --git a/drivers/char/hvc_irq.c b/drivers/char/hvc_irq.c
index d09e5688d449..2623e177e8d6 100644
--- a/drivers/char/hvc_irq.c
+++ b/drivers/char/hvc_irq.c
@@ -37,7 +37,7 @@ int notifier_add_irq(struct hvc_struct *hp, int irq)
 
 void notifier_del_irq(struct hvc_struct *hp, int irq)
 {
-        if (!irq)
+        if (!hp->irq_requested)
                 return;
         free_irq(irq, hp);
         hp->irq_requested = 0;
diff --git a/drivers/char/ps3flash.c b/drivers/char/ps3flash.c
index 79b6f461be75..afbe45676d71 100644
--- a/drivers/char/ps3flash.c
+++ b/drivers/char/ps3flash.c
@@ -44,7 +44,7 @@ static ssize_t ps3flash_read_write_sectors(struct ps3_storage_device *dev,
         u64 res = ps3stor_read_write_sectors(dev, lpar, start_sector, sectors,
                                              write);
         if (res) {
-                dev_err(&dev->sbd.core, "%s:%u: %s failed 0x%lx\n", __func__,
+                dev_err(&dev->sbd.core, "%s:%u: %s failed 0x%llx\n", __func__,
                         __LINE__, write ? "write" : "read", res);
                 return -EIO;
         }
@@ -59,7 +59,7 @@ static ssize_t ps3flash_read_sectors(struct ps3_storage_device *dev,
 
         max_sectors = dev->bounce_size / dev->blk_size;
         if (sectors > max_sectors) {
-                dev_dbg(&dev->sbd.core, "%s:%u Limiting sectors to %lu\n",
+                dev_dbg(&dev->sbd.core, "%s:%u Limiting sectors to %llu\n",
                         __func__, __LINE__, max_sectors);
                 sectors = max_sectors;
         }
@@ -144,7 +144,7 @@ static ssize_t ps3flash_read(struct file *file, char __user *buf, size_t count,
                         goto fail;
                 }
 
-                n = min(remaining, sectors_read*dev->blk_size-offset);
+                n = min_t(u64, remaining, sectors_read*dev->blk_size-offset);
                 dev_dbg(&dev->sbd.core,
                         "%s:%u: copy %lu bytes from 0x%p to user 0x%p\n",
                         __func__, __LINE__, n, dev->bounce_buf+offset, buf);
@@ -225,7 +225,7 @@ static ssize_t ps3flash_write(struct file *file, const char __user *buf,
                 if (end_read_sector >= start_read_sector) {
                         /* Merge head and tail */
                         dev_dbg(&dev->sbd.core,
-                                "Merged head and tail: %lu sectors at %lu\n",
+                                "Merged head and tail: %llu sectors at %llu\n",
                                 chunk_sectors, start_write_sector);
                         res = ps3flash_read_sectors(dev, start_write_sector,
                                                     chunk_sectors, 0);
@@ -235,7 +235,7 @@ static ssize_t ps3flash_write(struct file *file, const char __user *buf,
                         if (head) {
                                 /* Read head */
                                 dev_dbg(&dev->sbd.core,
-                                        "head: %lu sectors at %lu\n", head,
+                                        "head: %llu sectors at %llu\n", head,
                                         start_write_sector);
                                 res = ps3flash_read_sectors(dev,
                                                             start_write_sector,
@@ -247,7 +247,7 @@ static ssize_t ps3flash_write(struct file *file, const char __user *buf,
                             start_write_sector+chunk_sectors) {
                                 /* Read tail */
                                 dev_dbg(&dev->sbd.core,
-                                        "tail: %lu sectors at %lu\n", tail,
+                                        "tail: %llu sectors at %llu\n", tail,
                                         start_read_sector);
                                 sec_off = start_read_sector-start_write_sector;
                                 res = ps3flash_read_sectors(dev,
@@ -258,7 +258,7 @@ static ssize_t ps3flash_write(struct file *file, const char __user *buf,
                         }
                 }
 
-                n = min(remaining, dev->bounce_size-offset);
+                n = min_t(u64, remaining, dev->bounce_size-offset);
                 dev_dbg(&dev->sbd.core,
                         "%s:%u: copy %lu bytes from user 0x%p to 0x%p\n",
                         __func__, __LINE__, n, buf, dev->bounce_buf+offset);
@@ -299,11 +299,11 @@ static irqreturn_t ps3flash_interrupt(int irq, void *data)
 
         if (tag != dev->tag)
                 dev_err(&dev->sbd.core,
-                        "%s:%u: tag mismatch, got %lx, expected %lx\n",
+                        "%s:%u: tag mismatch, got %llx, expected %llx\n",
                         __func__, __LINE__, tag, dev->tag);
 
         if (res) {
-                dev_err(&dev->sbd.core, "%s:%u: res=%d status=0x%lx\n",
+                dev_err(&dev->sbd.core, "%s:%u: res=%d status=0x%llx\n",
                         __func__, __LINE__, res, status);
         } else {
                 dev->lv1_status = status;
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 53544e21f191..f329f459817c 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -1,6 +1,4 @@
 /*
- * $Id: synclink_gt.c,v 4.50 2007/07/25 19:29:25 paulkf Exp $
- *
  * Device driver for Microgate SyncLink GT serial adapters.
  *
  * written by Paul Fulghum for Microgate Corporation
@@ -91,7 +89,6 @@
  * module identification
  */
 static char *driver_name     = "SyncLink GT";
-static char *driver_version  = "$Revision: 4.50 $";
 static char *tty_driver_name = "synclink_gt";
 static char *tty_dev_prefix  = "ttySLG";
 MODULE_LICENSE("GPL");
@@ -1309,7 +1306,7 @@ static int read_proc(char *page, char **start, off_t off, int count,
         off_t   begin = 0;
         struct slgt_info *info;
 
-        len += sprintf(page, "synclink_gt driver:%s\n", driver_version);
+        len += sprintf(page, "synclink_gt driver\n");
 
         info = slgt_device_list;
         while( info ) {
@@ -2441,7 +2438,7 @@ static void program_hw(struct slgt_info *info)
         info->ri_chkcount = 0;
         info->dsr_chkcount = 0;
 
-        slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR);
+        slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI);
         get_signals(info);
 
         if (info->netcount ||
@@ -3576,7 +3573,7 @@ static void slgt_cleanup(void)
         struct slgt_info *info;
         struct slgt_info *tmp;
 
-        printk("unload %s %s\n", driver_name, driver_version);
+        printk(KERN_INFO "unload %s\n", driver_name);
 
         if (serial_driver) {
                 for (info=slgt_device_list ; info != NULL ; info=info->next_device)
@@ -3619,7 +3616,7 @@ static int __init slgt_init(void)
 {
         int rc;
 
-        printk("%s %s\n", driver_name, driver_version);
+        printk(KERN_INFO "%s\n", driver_name);
 
         serial_driver = alloc_tty_driver(MAX_DEVICES);
         if (!serial_driver) {
@@ -3650,9 +3647,8 @@ static int __init slgt_init(void)
                 goto error;
         }
 
-        printk("%s %s, tty major#%d\n",
-                driver_name, driver_version,
-                serial_driver->major);
+        printk(KERN_INFO "%s, tty major#%d\n",
+               driver_name, serial_driver->major);
 
         slgt_device_count = 0;
         if ((rc = pci_register_driver(&pci_driver)) < 0) {
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 5a3eab0882a0..fa71b84f217b 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -475,6 +475,12 @@ void __handle_sysrq(int key, struct tty_struct *tty, int check_mask)
         unsigned long flags;
 
         spin_lock_irqsave(&sysrq_key_table_lock, flags);
+        /*
+         * Raise the apparent loglevel to maximum so that the sysrq header
+         * is shown to provide the user with positive feedback.  We do not
+         * simply emit this at KERN_EMERG as that would change message
+         * routing in the consumers of /proc/kmsg.
+         */
         orig_log_level = console_loglevel;
         console_loglevel = 7;
         printk(KERN_INFO "SysRq : ");
diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c
index a408c8e487ec..6f4c7d0a53bf 100644
--- a/drivers/char/tty_ioctl.c
+++ b/drivers/char/tty_ioctl.c
@@ -1057,7 +1057,7 @@ int tty_perform_flush(struct tty_struct *tty, unsigned long arg)
         if (retval)
                 return retval;
 
-        ld = tty_ldisc_ref(tty);
+        ld = tty_ldisc_ref_wait(tty);
         switch (arg) {
         case TCIFLUSH:
                 if (ld && ld->ops->flush_buffer)