tty: Convert tty->closing to int

tty->closing is a bitfield member; prevent corruption from non-atomic
update by assigning a unique memory location.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/linux/tty.h b/include/linux/tty.h
index c52a689..7d66ae5 100644 (file)
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -284,7 +284,7 @@ struct tty_struct {
 
 #define N_TTY_BUF_SIZE 4096
 
-       unsigned char closing:1;
+       int closing;
        unsigned char *write_buf;
        int write_cnt;
        /* If the tty has a pending do_SAK, queue it here - akpm */