Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

[linux-2.6] / drivers / char / synclink_gt.c

diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 1a11717b1adc38ff519a7bfcd1ee919082003fe0..55c1653be00ca86f0f76051d940cfe7e5e933145 100644 (file)
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -151,7 +151,7 @@ static void hangup(struct tty_struct *tty);
 static void set_termios(struct tty_struct *tty, struct ktermios *old_termios);
 
 static int  write(struct tty_struct *tty, const unsigned char *buf, int count);
-static void put_char(struct tty_struct *tty, unsigned char ch);
+static int put_char(struct tty_struct *tty, unsigned char ch);
 static void send_xchar(struct tty_struct *tty, char ch);
 static void wait_until_sent(struct tty_struct *tty, int timeout);
 static int  write_room(struct tty_struct *tty);
@@ -912,20 +912,24 @@ cleanup:
        return ret;
 }
 
-static void put_char(struct tty_struct *tty, unsigned char ch)
+static int put_char(struct tty_struct *tty, unsigned char ch)
 {
        struct slgt_info *info = tty->driver_data;
        unsigned long flags;
+       int ret = 0;
 
        if (sanity_check(info, tty->name, "put_char"))
-               return;
+               return 0;
        DBGINFO(("%s put_char(%d)\n", info->device_name, ch));
        if (!info->tx_buf)
-               return;
+               return 0;
        spin_lock_irqsave(&info->lock,flags);
-       if (!info->tx_active && (info->tx_count < info->max_frame_size))
+       if (!info->tx_active && (info->tx_count < info->max_frame_size)) {
                info->tx_buf[info->tx_count++] = ch;
+               ret = 1;
+       }
        spin_unlock_irqrestore(&info->lock,flags);
+       return ret;
 }
 
 static void send_xchar(struct tty_struct *tty, char ch)
@@ -3346,7 +3350,7 @@ static int claim_resources(struct slgt_info *info)
        else
                info->reg_addr_requested = true;
 
-       info->reg_addr = ioremap(info->phys_reg_addr, SLGT_REG_SIZE);
+       info->reg_addr = ioremap_nocache(info->phys_reg_addr, SLGT_REG_SIZE);
        if (!info->reg_addr) {
                DBGERR(("%s cant map device registers, addr=%08X\n",
                        info->device_name, info->phys_reg_addr));