This is a note to let you know that I've just added the patch titled
drivers/tty/serial/pch_uart.c: don't oops if
to the 2.6.39-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drivers-tty-serial-pch_uart.c-don-t-oops-if.patch
and it can be found in the queue-2.6.39 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From fb139dfeef9558a12ffdbf9e26951fd1a9304f3b Mon Sep 17 00:00:00 2001
From: Alexander Stein <[email protected]>
Date: Wed, 15 Jun 2011 15:08:55 -0700
Subject: drivers/tty/serial/pch_uart.c: don't oops if
dmi_get_system_info returns NULL
From: Alexander Stein <[email protected]>
commit fb139dfeef9558a12ffdbf9e26951fd1a9304f3b upstream.
If dmi_get_system_info() returns NULL, pch_uart_init_port() will
dereferencea a zero pointer.
This oops was observed on an Atom based board which has no BIOS, but
a bootloder which doesn't provide DMI data.
Signed-off-by: Alexander Stein <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/tty/serial/pch_uart.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1392,6 +1392,7 @@ static struct eg20t_port *pch_uart_init_
int fifosize, base_baud;
int port_type;
struct pch_uart_driver_data *board;
+ const char *board_name;
board = &drv_dat[id->driver_data];
port_type = board->port_type;
@@ -1407,7 +1408,8 @@ static struct eg20t_port *pch_uart_init_
base_baud = 1843200; /* 1.8432MHz */
/* quirk for CM-iTC board */
- if (strstr(dmi_get_system_info(DMI_BOARD_NAME), "CM-iTC"))
+ board_name = dmi_get_system_info(DMI_BOARD_NAME);
+ if (board_name && strstr(board_name, "CM-iTC"))
base_baud = 192000000; /* 192.0MHz */
switch (port_type) {
Patches currently in stable-queue which might be from
[email protected] are
queue-2.6.39/drivers-tty-serial-pch_uart.c-don-t-oops-if.patch
_______________________________________________
stable mailing list
[email protected]
http://linux.kernel.org/mailman/listinfo/stable
