3.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stanislav Kozina <skoz...@redhat.com>
commit e9490e93c1978b6669f3e993caa3189be13ce459 upstream.
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 <skoz...@redhat.com>
Signed-off-by: Alan Cox <a...@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/tty/n_tty.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1728,7 +1728,8 @@ static ssize_t n_tty_read(struct tty_str
do_it_again:
- BUG_ON(!tty->read_buf);
+ if (WARN_ON(!tty->read_buf))
+ return -EAGAIN;
c = job_control(tty, file);
if (c < 0)
--
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