Commit e9490e93 authored Aug 16, 2012 by Stanislav Kozina Committed by Greg Kroah-Hartman Aug 16, 2012

Remove BUG_ON from n_tty_read()

Change the BUG_ON to WARN_ON and return in case of tty->read_buf==NULL. We want to track a
couple of long standing reports of this but at the same time we can avoid killing the box.

Signed-off-by: Stanislav Kozina <skozina@redhat.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Horses <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 6683549e

drivers/tty/n_tty.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1742,7 +1742,8 @@ static ssize_t n_tty_read(struct tty_struct tty, struct file file,

		do_it_again:

		BUG_ON(!tty->read_buf);
		if (WARN_ON(!tty->read_buf))
		return -EAGAIN;

		c = job_control(tty, file);
		if (c < 0)