18 lines
629 B
Diff
18 lines
629 B
Diff
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
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index 613c852..09c86d2 100644
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--- a/drivers/char/tty_io.c
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+++ b/drivers/char/tty_io.c
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@@ -1322,7 +1322,11 @@ static int tty_reopen(struct tty_struct *tty)
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tty->driver = driver; /* N.B. why do this every time?? */
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mutex_lock(&tty->ldisc_mutex);
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- WARN_ON(!test_bit(TTY_LDISC, &tty->flags));
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+ if (!test_bit(TTY_LDISC, &tty->flags)) {
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+ printk("%s: !test_bit(TTY_LDISC, &tty->flags) dev=%s ldisc=%s\n",
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+ __func__, tty->name, tty->ldisc ? tty->ldisc->ops ? tty->ldisc->ops->name : NULL : NULL);
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+ WARN_ON(1);
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+ }
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mutex_unlock(&tty->ldisc_mutex);
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return 0;
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