diff options
Diffstat (limited to 'drivers/mtd/mtdblock_ro.c')
| -rw-r--r-- | drivers/mtd/mtdblock_ro.c | 37 |
1 files changed, 9 insertions, 28 deletions
diff --git a/drivers/mtd/mtdblock_ro.c b/drivers/mtd/mtdblock_ro.c index fb5dc89369de..ef6299af60e4 100644 --- a/drivers/mtd/mtdblock_ro.c +++ b/drivers/mtd/mtdblock_ro.c @@ -1,22 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Simple read-only (writable only for RAM) mtdblock driver * * Copyright © 2001-2010 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * */ #include <linux/init.h> @@ -30,8 +16,10 @@ static int mtdblock_readsect(struct mtd_blktrans_dev *dev, unsigned long block, char *buf) { size_t retlen; + int err; - if (mtd_read(dev->mtd, (block * 512), 512, &retlen, buf)) + err = mtd_read(dev->mtd, (block * 512), 512, &retlen, buf); + if (err && !mtd_is_bitflip(err)) return 1; return 0; } @@ -60,6 +48,10 @@ static void mtdblock_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) dev->tr = tr; dev->readonly = 1; + if (mtd_type_is_nand(mtd)) + pr_warn_ratelimited("%s: MTD device '%s' is NAND, please consider using UBI block devices instead.\n", + tr->name, mtd->name); + if (add_mtd_blktrans_dev(dev)) kfree(dev); } @@ -81,18 +73,7 @@ static struct mtd_blktrans_ops mtdblock_tr = { .owner = THIS_MODULE, }; -static int __init mtdblock_init(void) -{ - return register_mtd_blktrans(&mtdblock_tr); -} - -static void __exit mtdblock_exit(void) -{ - deregister_mtd_blktrans(&mtdblock_tr); -} - -module_init(mtdblock_init); -module_exit(mtdblock_exit); +module_mtd_blktrans(mtdblock_tr); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); |