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Message-ID: <66b3083da689c5e76d7322ca9f117d631fda08af.1303123511.git.viresh.kumar@st.com> Date: Mon, 18 Apr 2011 16:20:01 +0530 From: Viresh Kumar <viresh.kumar@...com> To: <linux-kernel@...r.kernel.org>, <vinod.koul@...el.com>, <dan.j.williams@...el.com> Cc: <linux-arm-kernel@...ts.infradead.org>, <armando.visconti@...com>, <shiraz.hashim@...com>, <amit.goel@...com>, <viresh.linux@...il.com>, <jamie@...ieiles.com>, <linux@....linux.org.uk>, Viresh Kumar <viresh.kumar@...com> Subject: [PATCH 3/6] dmaengine/dw_dmac: call dwc_descriptor_complete from dwc_control with lock held dwc_descriptor_complete must always be called with channel lock held. This patch moves unlock code, in dwc_control(), untill after dwc_descriptor_complete is called. Signed-off-by: Viresh Kumar <viresh.kumar@...com> --- drivers/dma/dw_dmac.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 69a9c9d..b49d7f3 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -830,12 +830,12 @@ static int dwc_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, list_splice_init(&dwc->queue, &list); list_splice_init(&dwc->active_list, &list); - spin_unlock_irqrestore(&dwc->lock, dw->flags); - /* Flush all pending and queued descriptors */ list_for_each_entry_safe(desc, _desc, &list, desc_node) dwc_descriptor_complete(dwc, desc); + spin_unlock_irqrestore(&dwc->lock, dw->flags); + return 0; } -- 1.7.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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