linux-kernel - [PATCH 1/1] dma: pl330: Convert to devm_ioremap

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 31 Jan 2013 12:37:04 +0530
From:	Sachin Kamat <sachin.kamat@...aro.org>
To:	linux-kernel@...r.kernel.org
Cc:	sachin.kamat@...aro.org, Vinod Koul <vinod.koul@...el.com>,
	Thierry Reding <thierry.reding@...onic-design.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 1/1] dma: pl330: Convert to devm_ioremap_resource()

Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() which provides more consistent error handling.

Signed-off-by: Sachin Kamat <sachin.kamat@...aro.org>
Cc: Vinod Koul <vinod.koul@...el.com>
Cc: Thierry Reding <thierry.reding@...onic-design.de>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
This change is based against linux-next tree (20130128).
This change however introduces the followign sparse warning:
drivers/dma/pl330.c:2883:22: warning: incorrect type in argument 1 (different address spaces)
drivers/dma/pl330.c:2883:22:    expected void const *ptr
drivers/dma/pl330.c:2883:22:    got void [noderef] <asn:2>*base
drivers/dma/pl330.c:2884:34: warning: incorrect type in argument 1 (different address spaces)
drivers/dma/pl330.c:2884:34:    expected void const *ptr
drivers/dma/pl330.c:2884:34:    got void [noderef] <asn:2>*base
---
 drivers/dma/pl330.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 316a43e..142fe4d 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -25,6 +25,7 @@
 #include <linux/amba/pl330.h>
 #include <linux/scatterlist.h>
 #include <linux/of.h>
+#include <linux/err.h>
 
 #include "dmaengine.h"
 #define PL330_MAX_CHAN		8
@@ -2878,9 +2879,9 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	pi->mcbufsz = pdat ? pdat->mcbuf_sz : 0;
 
 	res = &adev->res;
-	pi->base = devm_request_and_ioremap(&adev->dev, res);
-	if (!pi->base)
-		return -ENXIO;
+	pi->base = devm_ioremap_resource(&adev->dev, res);
+	if (IS_ERR(pi->base))
+		return PTR_ERR(pi->base);
 
 	amba_set_drvdata(adev, pdmac);
 
-- 
1.7.4.1

--
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/