Commit c9a8e5fc authored by Linus Torvalds's avatar Linus Torvalds Committed by Greg Kroah-Hartman
Browse files

tty: wipe buffer. 



After we are done with the tty buffer, zero it out.

Reported-by: default avataraszlig <aszlig@nix.build>
Tested-by: default avatarMilan Broz <gmazyland@gmail.com>
Tested-by: default avatarDaniel Zatovic <daniel.zatovic@gmail.com>
Tested-by: default avataraszlig <aszlig@nix.build>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3bc3206e

drivers/tty/tty_buffer.c

+5 −1
Original line number Original line Diff line number Diff line
@@ -473,11 +473,15 @@ receive_buf(struct tty_port *port, struct tty_buffer *head, int count) 
{

{

	unsigned char *p = char_buf_ptr(head, head->read);

	unsigned char *p = char_buf_ptr(head, head->read);

	char	      *f = NULL;

	char	      *f = NULL;

	int n;





	if (~head->flags & TTYB_NORMAL)

	if (~head->flags & TTYB_NORMAL)

		f = flag_buf_ptr(head, head->read);

		f = flag_buf_ptr(head, head->read);





	return port->client_ops->receive_buf(port, p, f, count);

	n = port->client_ops->receive_buf(port, p, f, count);

	if (n > 0)

		memset(p, 0, n);

	return n;

}

}





/**

/**

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