linux-kernel - [PATCH] ata: pata_imx: fix devm_ioremap

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Message-id: <2050303.yEm1sTq1hQ@amdc1032>
Date:	Fri, 14 Mar 2014 18:33:13 +0100
From:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Shawn Guo <shawn.guo@...aro.org>,
	Sascha Hauer <kernel@...gutronix.de>,
	linux-ide@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] ata: pata_imx: fix devm_ioremap_resource() return value
 checking

devm_ioremap_resource() returns a pointer to the remapped memory or
an ERR_PTR() encoded error code on failure.  Fix the check inside
pata_imx_probe() accordingly.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
---
Compile tested only.

 drivers/ata/pata_imx.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: b/drivers/ata/pata_imx.c
===================================================================
--- a/drivers/ata/pata_imx.c	2014-03-14 16:45:04.260724378 +0100
+++ b/drivers/ata/pata_imx.c	2014-03-14 18:23:38.664623530 +0100
@@ -133,8 +133,8 @@ static int pata_imx_probe(struct platfor
 
 	io_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	priv->host_regs = devm_ioremap_resource(&pdev->dev, io_res);
-	if (!priv->host_regs) {
-		ret = -EBUSY;
+	if (IS_ERR(priv->host_regs)) {
+		ret = PTR_ERR(priv->host_regs);
 		goto err;
 	}
 

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