[ARM] 5483/1: Freescale STMP: add Kconfig/Makefile entries

[safe/jmp/linux-2.6] / drivers / mtd / nftlcore.c

diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index dd5cea8..e3f8495 100644 (file)
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -1,7 +1,6 @@
 /* Linux driver for NAND Flash Translation Layer      */
 /* (c) 1999 Machine Vision Holdings, Inc.             */
 /* Author: David Woodhouse <dwmw2@infradead.org>      */
-/* $Id: nftlcore.c,v 1.98 2005/11/07 11:14:21 gleixner Exp $ */
 
 /*
   The contents of this file are distributed under the GNU General
@@ -16,13 +15,11 @@
 #include <asm/errno.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
-#include <linux/miscdevice.h>
-#include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
-#include <linux/sched.h>
 #include <linux/init.h>
 #include <linux/hdreg.h>
+#include <linux/blkdev.h>
 
 #include <linux/kmod.h>
 #include <linux/mtd/mtd.h>
@@ -42,7 +39,7 @@ static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
        struct NFTLrecord *nftl;
        unsigned long temp;
 
-       if (mtd->type != MTD_NANDFLASH)
+       if (mtd->type != MTD_NANDFLASH || mtd->size > UINT_MAX)
                return;
        /* OK, this is moderately ugly.  But probably safe.  Alternatives? */
        if (memcmp(mtd->name, "DiskOnChip", 10))
@@ -57,17 +54,16 @@ static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
 
        DEBUG(MTD_DEBUG_LEVEL1, "NFTL: add_mtd for %s\n", mtd->name);
 
-       nftl = kmalloc(sizeof(struct NFTLrecord), GFP_KERNEL);
+       nftl = kzalloc(sizeof(struct NFTLrecord), GFP_KERNEL);
 
        if (!nftl) {
                printk(KERN_WARNING "NFTL: out of memory for data structures\n");
                return;
        }
-       memset(nftl, 0, sizeof(*nftl));
 
        nftl->mbd.mtd = mtd;
        nftl->mbd.devnum = -1;
-       nftl->mbd.blksize = 512;
+
        nftl->mbd.tr = tr;
 
         if (NFTL_mount(nftl) < 0) {
@@ -147,10 +143,9 @@ int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
        ops.ooblen = len;
        ops.oobbuf = buf;
        ops.datbuf = NULL;
-       ops.len = len;
 
        res = mtd->read_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
-       *retlen = ops.retlen;
+       *retlen = ops.oobretlen;
        return res;
 }
 
@@ -168,13 +163,14 @@ int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
        ops.ooblen = len;
        ops.oobbuf = buf;
        ops.datbuf = NULL;
-       ops.len = len;
 
        res = mtd->write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
-       *retlen = ops.retlen;
+       *retlen = ops.oobretlen;
        return res;
 }
 
+#ifdef CONFIG_NFTL_RW
+
 /*
  * Write data and oob to flash
  */
@@ -196,8 +192,6 @@ static int nftl_write(struct mtd_info *mtd, loff_t offs, size_t len,
        return res;
 }
 
-#ifdef CONFIG_NFTL_RW
-
 /* Actual NFTL access routines */
 /* NFTL_findfreeblock: Find a free Erase Unit on the NFTL partition. This function is used
  *     when the give Virtual Unit Chain
@@ -797,6 +791,7 @@ static struct mtd_blktrans_ops nftl_tr = {
        .name           = "nftl",
        .major          = NFTL_MAJOR,
        .part_bits      = NFTL_PARTN_BITS,
+       .blksize        = 512,
        .getgeo         = nftl_getgeo,
        .readsect       = nftl_readblock,
 #ifdef CONFIG_NFTL_RW
@@ -807,12 +802,8 @@ static struct mtd_blktrans_ops nftl_tr = {
        .owner          = THIS_MODULE,
 };
 
-extern char nftlmountrev[];
-
 static int __init init_nftl(void)
 {
-       printk(KERN_INFO "NFTL driver: nftlcore.c $Revision: 1.98 $, nftlmount.c %s\n", nftlmountrev);
-
        return register_mtd_blktrans(&nftl_tr);
 }
 
@@ -827,3 +818,4 @@ module_exit(cleanup_nftl);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>, Fabrice Bellard <fabrice.bellard@netgem.com> et al.");
 MODULE_DESCRIPTION("Support code for NAND Flash Translation Layer, used on M-Systems DiskOnChip 2000 and Millennium");
+MODULE_ALIAS_BLOCKDEV_MAJOR(NFTL_MAJOR);