linux-kernel - [PATCH v4 09/11] drivers/dma/iop-adma: Use dma_alloc

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Message-Id: <1440443613-13696-10-git-send-email-mcgrof@do-not-panic.com>
Date:	Mon, 24 Aug 2015 12:13:31 -0700
From:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
To:	mingo@...nel.org
Cc:	bp@...e.de, bhelgaas@...gle.com, tomi.valkeinen@...com,
	airlied@...ux.ie, linux-fbdev@...r.kernel.org, luto@...capital.net,
	vinod.koul@...el.com, dan.j.williams@...el.com, toshi.kani@...com,
	benh@...nel.crashing.org, mst@...hat.com,
	akpm@...ux-foundation.org, daniel.vetter@...ll.ch,
	konrad.wilk@...cle.com, x86@...nel.org,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	xen-devel@...ts.xensource.com,
	"Luis R. Rodriguez" <mcgrof@...e.com>, dmaengine@...r.kernel.org
Subject: [PATCH v4 09/11] drivers/dma/iop-adma: Use dma_alloc_writecombine() kernel-style

From: "Luis R. Rodriguez" <mcgrof@...e.com>

dma_alloc_writecombine()'s call and return value check is tangled in all
in one call. Untangle both calls according to kernel coding style.

Signed-off-by: Luis R. Rodriguez <mcgrof@...e.com>
Acked-by: Vinod Koul <vinod.koul@...el.com>
Cc: Vinod Koul <vinod.koul@...el.com>
Cc: Dan Williams <dan.j.williams@...el.com>
Cc: dmaengine@...r.kernel.org
Cc: x86@...nel.org
Link: http://lkml.kernel.org/r/1435258191-543-2-git-send-email-mcgrof@do-not-panic.com
Signed-off-by: Borislav Petkov <bp@...e.de>
---
 drivers/dma/iop-adma.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index 998826854fdd..e4f43125e0fb 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -1300,10 +1300,11 @@ static int iop_adma_probe(struct platform_device *pdev)
 	 * note: writecombine gives slightly better performance, but
 	 * requires that we explicitly flush the writes
 	 */
-	if ((adev->dma_desc_pool_virt = dma_alloc_writecombine(&pdev->dev,
-					plat_data->pool_size,
-					&adev->dma_desc_pool,
-					GFP_KERNEL)) == NULL) {
+	adev->dma_desc_pool_virt = dma_alloc_writecombine(&pdev->dev,
+							  plat_data->pool_size,
+							  &adev->dma_desc_pool,
+							  GFP_KERNEL);
+	if (!adev->dma_desc_pool_virt) {
 		ret = -ENOMEM;
 		goto err_free_adev;
 	}
-- 
2.4.3

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