[PATCH] consoles: switch to int put_char method

From: Alan Cox
Date: Sun Apr 13 2008 - 13:25:38 EST


Signed-off-by: Alan Cox <alan@xxxxxxxxxx>

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.25-rc8-mm2/drivers/char/viocons.c linux-2.6.25-rc8-mm2/drivers/char/viocons.c
--- linux.vanilla-2.6.25-rc8-mm2/drivers/char/viocons.c 2008-04-13 15:36:53.000000000 +0100
+++ linux-2.6.25-rc8-mm2/drivers/char/viocons.c 2008-04-13 15:41:03.000000000 +0100
@@ -628,13 +628,13 @@
/*
* TTY put_char method
*/
-static void viotty_put_char(struct tty_struct *tty, unsigned char ch)
+static int viotty_put_char(struct tty_struct *tty, unsigned char ch)
{
struct port_info *pi;

pi = get_port_data(tty);
if (pi == NULL)
- return;
+ return 0;

/* This will append '\r' as well if the char is '\n' */
if (viochar_is_console(pi))
@@ -642,6 +642,7 @@

if (viopath_isactive(pi->lp))
internal_write(pi, &ch, 1);
+ return 1;
}

/*
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.25-rc8-mm2/drivers/char/vt.c linux-2.6.25-rc8-mm2/drivers/char/vt.c
--- linux.vanilla-2.6.25-rc8-mm2/drivers/char/vt.c 2008-04-13 15:36:53.000000000 +0100
+++ linux-2.6.25-rc8-mm2/drivers/char/vt.c 2008-04-13 15:41:03.000000000 +0100
@@ -2641,11 +2641,11 @@
return retval;
}

-static void con_put_char(struct tty_struct *tty, unsigned char ch)
+static int con_put_char(struct tty_struct *tty, unsigned char ch)
{
if (in_interrupt())
- return; /* n_r3964 calls put_char() from interrupt context */
- do_con_write(tty, &ch, 1);
+ return 0; /* n_r3964 calls put_char() from interrupt context */
+ return do_con_write(tty, &ch, 1);
}

static int con_write_room(struct tty_struct *tty)
--
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