Messages in this thread | | | Date | Wed, 19 Dec 2012 19:10:30 +0000 | From | Alan Cox <> | Subject | Re: [PATCH] tty: Fix unreasonable write toward closed pty. |
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> diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c > index a82b399..1ce1362 100644 > --- a/drivers/tty/pty.c > +++ b/drivers/tty/pty.c > @@ -116,6 +116,8 @@ static int pty_space(struct tty_struct *to) > > static int pty_write(struct tty_struct *tty, const unsigned char *buf, int c) > { > + if (test_bit(TTY_OTHER_CLOSED, &tty->flags)) > + return -EIO;
The flag can change between the test and ny further code being executed ?
Alan
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