linux-kernel - [PATCH 1/4] dmaengine/ste_dma40: make the cyclic alloc NOWAIT

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Message-ID: <1309167204-23338-1-git-send-email-linus.walleij@stericsson.com>
Date:	Mon, 27 Jun 2011 11:33:24 +0200
From:	Linus Walleij <linus.walleij@...ricsson.com>
To:	Vinod Koul <vinod.koul@...el.com>
Cc:	<linux-kernel@...r.kernel.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Lee Jones <lee.jones@...aro.org>,
	Robert Marklund <robert.marklund@...ricsson.com>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 1/4] dmaengine/ste_dma40: make the cyclic alloc NOWAIT

From: Robert Marklund <robert.marklund@...ricsson.com>

This function may be initiated from IRQ context, so the allocation
must allocate NOWAIT memory.

Signed-off-by: Robert Marklund <robert.marklund@...ricsson.com>
Reviewed-by: Rabin Vincent <rabin.vincent@...ricsson.com>
Reviewed-by: Philippe Langlais <philippe.langlais@...ricsson.com>
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
 drivers/dma/ste_dma40.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 91d5ed7..58de946 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -2110,7 +2110,7 @@ dma40_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t dma_addr,
 	struct scatterlist *sg;
 	int i;
 
-	sg = kcalloc(periods + 1, sizeof(struct scatterlist), GFP_KERNEL);
+	sg = kcalloc(periods + 1, sizeof(struct scatterlist), GFP_NOWAIT);
 	for (i = 0; i < periods; i++) {
 		sg_dma_address(&sg[i]) = dma_addr;
 		sg_dma_len(&sg[i]) = period_len;
-- 
1.7.3.2

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