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[PATCH] generic_serial: fix decoding of baud rate

Browse source 
Commit d720bc4b8f partially removed a
private implementation of baud speed decoding.  However it doesn't seem
to be complete: after the speed is decoded, it is still being used as an
index to a local speed table (array overrun, no doubt).

This was found by Graham Murray who noticed it caused a 2.6.19 regression
with the SX driver: https://bugs.gentoo.org/170554

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Daniel Drake 2007-03-26 21:32:15 -08:00 committed by Linus Torvalds
parent 5e55e2f5fc
commit d340d89087
1 changed files with 0 additions and 7 deletions
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7
drivers/char/generic_serial.c
View file

@ -710,12 +710,6 @@ void gs_close(struct tty_struct * tty, struct file * filp)
}
static unsigned int gs_baudrates[] = {
0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600
};
void gs_set_termios (struct tty_struct * tty,
struct ktermios * old_termios)
{
@ -771,7 +765,6 @@ void gs_set_termios (struct tty_struct * tty,
baudrate = tty_get_baud_rate(tty);
baudrate = gs_baudrates[baudrate];
if ((tiosp->c_cflag & CBAUD) == B38400) {
if ( (port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
baudrate = 57600;