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| author | H Hartley Sweeten <hartleys@visionengravers.com> | 2009-12-14 16:48:34 -0500 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-12-31 20:47:20 +0000 |
| commit | e99030609e27abff7e1a868cb56384c678b09984 (patch) | |
| tree | aa55876a384d6994c86eb936252f68f70dcb9e4a | |
| parent | 4442241ef6ed4d53c13d1c4b18fd57918bb4c850 (diff) | |
| download | kernel_samsung_smdk4412-e99030609e27abff7e1a868cb56384c678b09984.zip kernel_samsung_smdk4412-e99030609e27abff7e1a868cb56384c678b09984.tar.gz kernel_samsung_smdk4412-e99030609e27abff7e1a868cb56384c678b09984.tar.bz2 | |
mtd: orion_nand.c: add error handling and use resource_size()
Use platform_get_resource() to fetch the memory resource and
add error handling for when it is missing. Use resource_size()
for the ioremap().
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | drivers/mtd/nand/orion_nand.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index f59c074..9903460 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -74,6 +74,7 @@ static int __init orion_nand_probe(struct platform_device *pdev) struct mtd_info *mtd; struct nand_chip *nc; struct orion_nand_data *board; + struct resource *res; void __iomem *io_base; int ret = 0; #ifdef CONFIG_MTD_PARTITIONS @@ -89,8 +90,13 @@ static int __init orion_nand_probe(struct platform_device *pdev) } mtd = (struct mtd_info *)(nc + 1); - io_base = ioremap(pdev->resource[0].start, - pdev->resource[0].end - pdev->resource[0].start + 1); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + err = -ENODEV; + goto no_res; + } + + io_base = ioremap(res->start, resource_size(res)); if (!io_base) { printk(KERN_ERR "orion_nand: ioremap failed\n"); ret = -EIO; |