From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bryan Wu Subject: [PATCH 04/12] [Blackfin] serial driver: Fix bug Free rx dma buffer in shutdown. Date: Wed, 30 Jan 2008 17:30:04 +0800 Message-ID: <1201685412-29095-5-git-send-email-bryan.wu@analog.com> References: <1201685412-29095-1-git-send-email-bryan.wu@analog.com> Return-path: Received: from nwd2mail11.analog.com ([137.71.25.57]:40738 "EHLO nwd2mail11.analog.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755282AbYA3JaR (ORCPT ); Wed, 30 Jan 2008 04:30:17 -0500 In-Reply-To: <1201685412-29095-1-git-send-email-bryan.wu@analog.com> Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: linux-serial@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Sonic Zhang , Bryan Wu From: Sonic Zhang Kernel crash for the serial driver in DMA mode: http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3679 Signed-off-by: Sonic Zhang Signed-off-by: Bryan Wu --- drivers/serial/bfin_5xx.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 3a2aa7e..838f491 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -704,6 +704,7 @@ static void bfin_serial_shutdown(struct uart_port *port) disable_dma(uart->rx_dma_channel); free_dma(uart->rx_dma_channel); del_timer(&(uart->rx_dma_timer)); + dma_free_coherent(NULL, PAGE_SIZE, uart->rx_dma_buf.buf, 0); #else #ifdef CONFIG_KGDB_UART if (uart->port.line != CONFIG_KGDB_UART_PORT) -- 1.5.3.4