Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752169Ab1BQHZ6 (ORCPT ); Thu, 17 Feb 2011 02:25:58 -0500 Received: from eu1sys200aog105.obsmtp.com ([207.126.144.119]:50173 "EHLO eu1sys200aog105.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751441Ab1BQHZ4 (ORCPT ); Thu, 17 Feb 2011 02:25:56 -0500 From: Viresh Kumar To: , Cc: , , , Viresh Kumar Subject: [PATCH 4/7] dw_dmac: calling dwc_scan_descriptors from dwc_tx_status() after taking lock Date: Thu, 17 Feb 2011 12:54:54 +0530 Message-ID: <2221975299c2fa187f86be691a5a5c27a4cbdf90.1297926678.git.viresh.kumar@st.com> X-Mailer: git-send-email 1.7.2.2 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 874 Lines: 27 Signed-off-by: Viresh Kumar --- drivers/dma/dw_dmac.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 3bf4772..5cc5abf 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -830,7 +830,9 @@ dwc_tx_status(struct dma_chan *chan, ret = dma_async_is_complete(cookie, last_complete, last_used); if (ret != DMA_SUCCESS) { + spin_lock_bh(&dwc->lock); dwc_scan_descriptors(to_dw_dma(chan->device), dwc); + spin_unlock_bh(&dwc->lock); last_complete = dwc->completed; last_used = chan->cookie; -- 1.7.2.2 -- 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/