mtd: docg3: Use devm_*() functions

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=82402aeb8c81edab9249b9e330b21e88723f539e
Commit:     82402aeb8c81edab9249b9e330b21e88723f539e
Parent:     30b2afc8471ea06a6d18b9f6bc183dafb99de1f9
Author:     Jingoo Han <jg1.han at samsung.com>
AuthorDate: Thu Dec 26 10:40:52 2013 +0900
Committer:  Brian Norris <computersforpeace at gmail.com>
CommitDate: Fri Jan 3 11:22:27 2014 -0800

    mtd: docg3: Use devm_*() functions
    
    Use devm_*() functions to make cleanup paths simpler.
    
    Signed-off-by: Jingoo Han <jg1.han at samsung.com>
    Signed-off-by: Brian Norris <computersforpeace at gmail.com>
---
 drivers/mtd/devices/docg3.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c
index 4f091c1..dd5e101 100644
--- a/drivers/mtd/devices/docg3.c
+++ b/drivers/mtd/devices/docg3.c
@@ -2047,21 +2047,21 @@ static int __init docg3_probe(struct platform_device *pdev)
 	ress = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!ress) {
 		dev_err(dev, "No I/O memory resource defined\n");
-		goto noress;
+		return ret;
 	}
-	base = ioremap(ress->start, DOC_IOSPACE_SIZE);
+	base = devm_ioremap(dev, ress->start, DOC_IOSPACE_SIZE);
 
 	ret = -ENOMEM;
-	cascade = kzalloc(sizeof(*cascade) * DOC_MAX_NBFLOORS,
-			  GFP_KERNEL);
+	cascade = devm_kzalloc(dev, sizeof(*cascade) * DOC_MAX_NBFLOORS,
+			       GFP_KERNEL);
 	if (!cascade)
-		goto nomem1;
+		return ret;
 	cascade->base = base;
 	mutex_init(&cascade->lock);
 	cascade->bch = init_bch(DOC_ECC_BCH_M, DOC_ECC_BCH_T,
 			     DOC_ECC_BCH_PRIMPOLY);
 	if (!cascade->bch)
-		goto nomem2;
+		return ret;
 
 	for (floor = 0; floor < DOC_MAX_NBFLOORS; floor++) {
 		mtd = doc_probe_device(cascade, floor, dev);
@@ -2101,11 +2101,6 @@ err_probe:
 	for (floor = 0; floor < DOC_MAX_NBFLOORS; floor++)
 		if (cascade->floors[floor])
 			doc_release_device(cascade->floors[floor]);
-nomem2:
-	kfree(cascade);
-nomem1:
-	iounmap(base);
-noress:
 	return ret;
 }
 
@@ -2119,7 +2114,6 @@ static int __exit docg3_release(struct platform_device *pdev)
 {
 	struct docg3_cascade *cascade = platform_get_drvdata(pdev);
 	struct docg3 *docg3 = cascade->floors[0]->priv;
-	void __iomem *base = cascade->base;
 	int floor;
 
 	doc_unregister_sysfs(pdev, cascade);
@@ -2129,8 +2123,6 @@ static int __exit docg3_release(struct platform_device *pdev)
 			doc_release_device(cascade->floors[floor]);
 
 	free_bch(docg3->cascade->bch);
-	kfree(cascade);
-	iounmap(base);
 	return 0;
 }