linux-kernel - [PATCH 04/19] NFC: nci: Remove dead code

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Message-Id: <1448660356-6328-5-git-send-email-peter@hurleysoftware.com>
Date:	Fri, 27 Nov 2015 16:39:01 -0500
From:	Peter Hurley <peter@...leysoftware.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Jiri Slaby <jslaby@...e.cz>, linux-kernel@...r.kernel.org,
	Andi Kleen <andi@...stfloor.org>,
	Peter Hurley <peter@...leysoftware.com>,
	Lauro Ramos Venancio <lauro.venancio@...nbossa.org>,
	Aloisio Almeida Jr <aloisio.almeida@...nbossa.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	"David S. Miller" <davem@...emloft.net>,
	linux-wireless@...r.kernel.org
Subject: [PATCH 04/19] NFC: nci: Remove dead code

The N_NCI ldisc does not define a flush_buffer() ldisc method, so
the check when opening the ldisc is always false.

Cc: Lauro Ramos Venancio <lauro.venancio@...nbossa.org>
Cc: Aloisio Almeida Jr <aloisio.almeida@...nbossa.org>
Cc: Samuel Ortiz <sameo@...ux.intel.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: <linux-wireless@...r.kernel.org>
Signed-off-by: Peter Hurley <peter@...leysoftware.com>
---
 net/nfc/nci/uart.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/net/nfc/nci/uart.c b/net/nfc/nci/uart.c
index 21d8875..c468eab 100644
--- a/net/nfc/nci/uart.c
+++ b/net/nfc/nci/uart.c
@@ -171,14 +171,7 @@ static int nci_uart_tty_open(struct tty_struct *tty)
 	tty->disc_data = NULL;
 	tty->receive_room = 65536;
 
-	/* Flush any pending characters in the driver and line discipline. */
-
-	/* FIXME: why is this needed. Note don't use ldisc_ref here as the
-	 * open path is before the ldisc is referencable.
-	 */
-
-	if (tty->ldisc->ops->flush_buffer)
-		tty->ldisc->ops->flush_buffer(tty);
+	/* Flush any pending characters in the driver */
 	tty_driver_flush_buffer(tty);
 
 	return 0;
-- 
2.6.3

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