From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri, 14 Mar 2014 17:33:13 +0000 (+0100)
Subject: ata: pata_imx: fix devm_ioremap_resource() return value checking
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=13e8e78bdd148f615da1e5d1edcf0b58b7c2b684;p=openwrt%2Fstaging%2Fblogic.git

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@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/drivers/ata/pata_imx.c b/drivers/ata/pata_imx.c
index 121c748314c3..161769343ce7 100644
--- a/drivers/ata/pata_imx.c
+++ b/drivers/ata/pata_imx.c
@@ -131,8 +131,8 @@ static int pata_imx_probe(struct platform_device *pdev)
 
 	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;
 	}