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Message-ID: <c19b6c33e8a04b652e78252fa96021bcd39047e4.1303194835.git.viresh.kumar@st.com> Date: Tue, 19 Apr 2011 14:02:08 +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>, <linus.walleij@...aro.org>, Viresh Kumar <viresh.kumar@...com> Subject: [PATCH V2 3/7] 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 66d7f1b..c211460 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -825,12 +825,12 @@ 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, dwc->lflags); - /* 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, dwc->lflags); + 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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