This is a note to let you know that I've just added the patch titled
Remove BUG_ON from n_tty_read()
to the 3.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
remove-bug_on-from-n_tty_read.patch
and it can be found in the queue-3.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From e9490e93c1978b6669f3e993caa3189be13ce459 Mon Sep 17 00:00:00 2001
From: Stanislav Kozina <[email protected]>
Date: Thu, 16 Aug 2012 12:01:47 +0100
Subject: Remove BUG_ON from n_tty_read()
From: Stanislav Kozina <[email protected]>
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 <[email protected]>
Signed-off-by: Alan Cox <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
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)
Patches currently in stable-queue which might be from [email protected] are
queue-3.6/remove-bug_on-from-n_tty_read.patch
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