From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tao Hou Subject: [PATCH] net: ethernet: davinci_cpdma: decrease the desc count when cleaning up the remaining packets Date: Tue, 2 Oct 2012 10:42:43 +0800 Message-ID: <1349145763-6292-1-git-send-email-hotforest@gmail.com> Cc: linux-kernel@vger.kernel.org, Tao Hou To: "David S. Miller" , netdev@vger.kernel.org Return-path: Received: from mail-da0-f46.google.com ([209.85.210.46]:46625 "EHLO mail-da0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753734Ab2JBCnG (ORCPT ); Mon, 1 Oct 2012 22:43:06 -0400 Sender: netdev-owner@vger.kernel.org List-ID: chan->count is used by rx channel. If the desc count is not updated by the clean up loop in cpdma_chan_stop, the value written to the rxfree register in cpdma_chan_start will be incorrect. Signed-off-by: Tao Hou --- drivers/net/ethernet/ti/davinci_cpdma.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index d15c888..4995673 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -863,6 +863,7 @@ int cpdma_chan_stop(struct cpdma_chan *chan) next_dma = desc_read(desc, hw_next); chan->head = desc_from_phys(pool, next_dma); + chan->count--; chan->stats.teardown_dequeue++; /* issue callback without locks held */ -- 1.7.9.5