linux-kernel - [patch] tty: save newly allocated buffer in tty_free

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Message-ID: <20120720133245.GD22245@elgon.mountain>
Date:	Fri, 20 Jul 2012 16:32:45 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch] tty: save newly allocated buffer in tty_free_termios()

We're trying to save the termios state and we need to allocate a buffer
to do it.  Smatch complains that the buffer is leaked at the end of the
function.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index be18d60..58a1bdd 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1450,6 +1450,7 @@ void tty_free_termios(struct tty_struct *tty)
 			pr_warn("tty: no memory to save termios state.\n");
 			return;
 		}
+		tty->driver->termios[idx] = tp;
 	}
 	*tp = tty->termios;
 }
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