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Commit e9490e93 authored by Stanislav Kozina's avatar Stanislav Kozina Committed by Greg Kroah-Hartman
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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: default avatarStanislav Kozina <skozina@redhat.com>
Signed-off-by: default avatarAlan Cox <alan@linux.intel.com>
Cc: Horses <stable@kernel.org>
Signed-off-by: default avatarGreg 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)