Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754768AbZCFGmA (ORCPT ); Fri, 6 Mar 2009 01:42:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754627AbZCFGk4 (ORCPT ); Fri, 6 Mar 2009 01:40:56 -0500 Received: from nwd2mail10.analog.com ([137.71.25.55]:39798 "EHLO nwd2mail10.analog.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754143AbZCFGkz (ORCPT ); Fri, 6 Mar 2009 01:40:55 -0500 X-IronPort-AV: E=Sophos;i="4.38,312,1233550800"; d="scan'208";a="83883644" From: Bryan Wu To: alan@lxorguk.ukuu.org.uk Cc: linux-kernel@vger.kernel.org, Sonic Zhang , Bryan Wu Subject: [PATCH 03/18] Blackfin Serial Driver: fix a in dma circle rx buffer handling Date: Fri, 6 Mar 2009 14:42:45 +0800 Message-Id: <1236321780-28718-4-git-send-email-cooloney@kernel.org> X-Mailer: git-send-email 1.5.6.3 In-Reply-To: <1236321780-28718-1-git-send-email-cooloney@kernel.org> References: <1236321780-28718-1-git-send-email-cooloney@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1169 Lines: 33 From: Sonic Zhang Reported-by: Qian Zhang Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 350bfc4..1e027e3 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -402,9 +402,11 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart) else flg = TTY_NORMAL; - for (i = uart->rx_dma_buf.tail; i != uart->rx_dma_buf.head; i++) { + for (i = uart->rx_dma_buf.tail; ; i++) { if (i >= UART_XMIT_SIZE) i = 0; + if (i == uart->rx_dma_buf.head) + break; if (!uart_handle_sysrq_char(&uart->port, uart->rx_dma_buf.buf[i])) uart_insert_char(&uart->port, status, OE, uart->rx_dma_buf.buf[i], flg); -- 1.5.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/