V4L/DVB (4804): Fix missing i2c dependency for saa7110

[linux-2.6-omap-h63xx.git] / drivers / char / hvsi.c

diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index 41db8060e8f791502c51bb559ffbfa4881327e5c..2cf63e7305a3b067896df8a4c7bd35d77d1980c0 100644 (file)
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -311,7 +311,8 @@ static void hvsi_recv_control(struct hvsi_struct *hp, uint8_t *packet,
                                /* CD went away; no more connection */
                                pr_debug("hvsi%i: CD dropped\n", hp->index);
                                hp->mctrl &= TIOCM_CD;
-                               if (!(hp->tty->flags & CLOCAL))
+                               /* If userland hasn't done an open(2) yet, hp->tty is NULL. */
+                               if (hp->tty && !(hp->tty->flags & CLOCAL))
                                        *to_hangup = hp->tty;
                        }
                        break;
@@ -405,7 +406,7 @@ static void hvsi_insert_chars(struct hvsi_struct *hp, const char *buf, int len)
                        hp->sysrq = 1;
                        continue;
                } else if (hp->sysrq) {
-                       handle_sysrq(c, NULL, hp->tty);
+                       handle_sysrq(c, hp->tty);
                        hp->sysrq = 0;
                        continue;
                }
@@ -554,7 +555,7 @@ static void hvsi_send_overflow(struct hvsi_struct *hp)
  * must get all pending data because we only get an irq on empty->non-empty
  * transition
  */
-static irqreturn_t hvsi_interrupt(int irq, void *arg, struct pt_regs *regs)
+static irqreturn_t hvsi_interrupt(int irq, void *arg)
 {
        struct hvsi_struct *hp = (struct hvsi_struct *)arg;
        struct tty_struct *flip;
@@ -615,7 +616,7 @@ static int __init poll_for_state(struct hvsi_struct *hp, int state)
        unsigned long end_jiffies = jiffies + HVSI_TIMEOUT;
 
        for (;;) {
-               hvsi_interrupt(hp->virq, (void *)hp, NULL); /* get pending data */
+               hvsi_interrupt(hp->virq, (void *)hp); /* get pending data */
 
                if (hp->state == state)
                        return 0;
@@ -986,10 +987,7 @@ static void hvsi_write_worker(void *arg)
                start_j = 0;
 #endif /* DEBUG */
                wake_up_all(&hp->emptyq);
-               if (test_bit(TTY_DO_WRITE_WAKEUP, &hp->tty->flags)
-                               && hp->tty->ldisc.write_wakeup)
-                       hp->tty->ldisc.write_wakeup(hp->tty);
-               wake_up_interruptible(&hp->tty->write_wait);
+               tty_wakeup(hp->tty);
        }
 
 out:
@@ -1132,7 +1130,7 @@ static int hvsi_tiocmset(struct tty_struct *tty, struct file *file,
 }
 
 
-static struct tty_operations hvsi_ops = {
+static const struct tty_operations hvsi_ops = {
        .open = hvsi_open,
        .close = hvsi_close,
        .write = hvsi_write,
@@ -1276,11 +1274,10 @@ static int __init hvsi_console_init(void)
                        vty != NULL;
                        vty = of_find_compatible_node(vty, "serial", "hvterm-protocol")) {
                struct hvsi_struct *hp;
-               uint32_t *vtermno;
-               uint32_t *irq;
+               const uint32_t *vtermno, *irq;
 
-               vtermno = (uint32_t *)get_property(vty, "reg", NULL);
-               irq = (uint32_t *)get_property(vty, "interrupts", NULL);
+               vtermno = get_property(vty, "reg", NULL);
+               irq = get_property(vty, "interrupts", NULL);
                if (!vtermno || !irq)
                        continue;