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From: Richard Fitzgerald <rf@opensource.cirrus.com>
To: <vkoul@kernel.org>, <michal.simek@xilinx.com>
Cc: dmaengine@vger.kernel.org, patches@opensource.cirrus.com,
	Richard Fitzgerald <rf@opensource.cirrus.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH] dmaengine: xilinx_dma: Alloc tx descriptors GFP_NOWAIT
Date: Fri, 29 Jan 2021 17:08:00 +0000	[thread overview]
Message-ID: <20210129170800.31857-1-rf@opensource.cirrus.com> (raw)

Use GFP_NOWAIT allocation in xilinx_dma_alloc_tx_descriptor().

This is necessary for compatibility with ALSA, which calls
dmaengine_prep_dma_cyclic() from an atomic context.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
 drivers/dma/xilinx/xilinx_dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 22faea653ea8..fb046af9ac53 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -800,7 +800,7 @@ xilinx_dma_alloc_tx_descriptor(struct xilinx_dma_chan *chan)
 {
 	struct xilinx_dma_tx_descriptor *desc;
 
-	desc = kzalloc(sizeof(*desc), GFP_KERNEL);
+	desc = kzalloc(sizeof(*desc), GFP_NOWAIT);
 	if (!desc)
 		return NULL;
 
-- 
2.20.1


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             reply	other threads:[~2021-01-29 18:18 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-29 17:08 Richard Fitzgerald [this message]
2021-02-01  9:56 ` [PATCH] dmaengine: xilinx_dma: Alloc tx descriptors GFP_NOWAIT Vinod Koul

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