diff options
Diffstat (limited to 'drivers/mtd/inftlcore.c')
| -rw-r--r-- | drivers/mtd/inftlcore.c | 51 |
1 files changed, 14 insertions, 37 deletions
diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c index 3af351484098..58c6e1743f5c 100644 --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * inftlcore.c -- Linux driver for Inverse Flash Translation Layer (INFTL) * @@ -6,20 +7,6 @@ * Based heavily on the nftlcore.c code which is: * Copyright © 1999 Machine Vision Holdings, Inc. * Copyright © 1999 David Woodhouse <dwmw2@infradead.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> @@ -33,8 +20,8 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/nftl.h> #include <linux/mtd/inftl.h> -#include <linux/mtd/nand.h> -#include <asm/uaccess.h> +#include <linux/mtd/rawnand.h> +#include <linux/uaccess.h> #include <asm/errno.h> #include <asm/io.h> @@ -50,7 +37,7 @@ static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) struct INFTLrecord *inftl; unsigned long temp; - if (mtd->type != MTD_NANDFLASH || mtd->size > UINT_MAX) + if (!mtd_type_is_nand(mtd) || mtd->size > UINT_MAX) return; /* OK, this is moderately ugly. But probably safe. Alternatives? */ if (memcmp(mtd->name, "DiskOnChip", 10)) @@ -149,7 +136,7 @@ static void inftl_remove_dev(struct mtd_blktrans_dev *dev) int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len, size_t *retlen, uint8_t *buf) { - struct mtd_oob_ops ops; + struct mtd_oob_ops ops = { }; int res; ops.mode = MTD_OPS_PLACE_OOB; @@ -169,7 +156,7 @@ int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len, int inftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len, size_t *retlen, uint8_t *buf) { - struct mtd_oob_ops ops; + struct mtd_oob_ops ops = { }; int res; ops.mode = MTD_OPS_PLACE_OOB; @@ -189,7 +176,7 @@ int inftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len, static int inftl_write(struct mtd_info *mtd, loff_t offs, size_t len, size_t *retlen, uint8_t *buf, uint8_t *oob) { - struct mtd_oob_ops ops; + struct mtd_oob_ops ops = { }; int res; ops.mode = MTD_OPS_PLACE_OOB; @@ -369,7 +356,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned * Newest unit in chain now contains data from _all_ older units. * So go through and erase each unit in chain, oldest first. (This * is important, by doing oldest first if we crash/reboot then it - * it is relatively simple to clean up the mess). + * is relatively simple to clean up the mess). */ pr_debug("INFTL: want to erase virtual chain %d\n", thisVUC); @@ -495,10 +482,11 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block) silly = MAX_LOOPS; while (thisEUN <= inftl->lastEUN) { - inftl_read_oob(mtd, (thisEUN * inftl->EraseSize) + - blockofs, 8, &retlen, (char *)&bci); - - status = bci.Status | bci.Status1; + if (inftl_read_oob(mtd, (thisEUN * inftl->EraseSize) + + blockofs, 8, &retlen, (char *)&bci) < 0) + status = SECTOR_IGNORE; + else + status = bci.Status | bci.Status1; pr_debug("INFTL: status of block %d in EUN %d is %x\n", block , writeEUN, status); @@ -950,18 +938,7 @@ static struct mtd_blktrans_ops inftl_tr = { .owner = THIS_MODULE, }; -static int __init init_inftl(void) -{ - return register_mtd_blktrans(&inftl_tr); -} - -static void __exit cleanup_inftl(void) -{ - deregister_mtd_blktrans(&inftl_tr); -} - -module_init(init_inftl); -module_exit(cleanup_inftl); +module_mtd_blktrans(inftl_tr); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Greg Ungerer <gerg@snapgear.com>, David Woodhouse <dwmw2@infradead.org>, Fabrice Bellard <fabrice.bellard@netgem.com> et al."); |