From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759437AbYJPRq4 (ORCPT ); Thu, 16 Oct 2008 13:46:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757412AbYJPRpX (ORCPT ); Thu, 16 Oct 2008 13:45:23 -0400 Received: from ti-out-0910.google.com ([209.85.142.190]:20082 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758565AbYJPRpU (ORCPT ); Thu, 16 Oct 2008 13:45:20 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references :sender; b=Rn2BjQEaryY4RrJydgI9o0M3MnKiz9XIAKxf/3M5pCkFRwGt6AAPPY1ozPu5dMWgiw pZx9wkJlcRu+IbE5waE/WTJRQ3mNATHzVHNxf3bAJYayfQP2BcuBzQqi3wrPRSCiaJCe r6tACSDDivBxqsEfb92aNOBoyFntSNXoe1jXM= From: Bryan Wu To: alan@redhat.com Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Sonic Zhang , Bryan Wu Subject: [PATCH 8/9] Blackfin Serial Driver: fix a in dma circle rx buffer handling Date: Fri, 17 Oct 2008 01:44:06 +0800 Message-Id: <1224179047-13073-9-git-send-email-cooloney@kernel.org> X-Mailer: git-send-email 1.5.6 In-Reply-To: <1224179047-13073-1-git-send-email-cooloney@kernel.org> References: <1224179047-13073-1-git-send-email-cooloney@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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