diff options
Diffstat (limited to 'drivers/mtd/inftlmount.c')
| -rw-r--r-- | drivers/mtd/inftlmount.c | 69 |
1 files changed, 27 insertions, 42 deletions
diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c index 8d6bb189ea8e..6276daa296da 100644 --- a/drivers/mtd/inftlmount.c +++ b/drivers/mtd/inftlmount.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * inftlmount.c -- INFTL mount code with extensive checks. * @@ -7,20 +8,6 @@ * Based heavily on the nftlmount.c code which is: * Author: Fabrice Bellard (fabrice.bellard@netgem.com) * Copyright © 2000 Netgem S.A. - * - * 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> @@ -143,7 +130,7 @@ static int find_boot_record(struct INFTLrecord *inftl) " NoOfBootImageBlocks = %d\n" " NoOfBinaryPartitions = %d\n" " NoOfBDTLPartitions = %d\n" - " BlockMultiplerBits = %d\n" + " BlockMultiplierBits = %d\n" " FormatFlgs = %d\n" " OsakVersion = 0x%x\n" " PercentUsed = %d\n", @@ -208,8 +195,6 @@ static int find_boot_record(struct INFTLrecord *inftl) if (ip->Reserved0 != ip->firstUnit) { struct erase_info *instr = &inftl->instr; - instr->mtd = inftl->mbd.mtd; - /* * Most likely this is using the * undocumented qiuck mount feature. @@ -272,20 +257,15 @@ static int find_boot_record(struct INFTLrecord *inftl) inftl->nb_blocks = ip->lastUnit + 1; /* Memory alloc */ - inftl->PUtable = kmalloc(inftl->nb_blocks * sizeof(u16), GFP_KERNEL); - if (!inftl->PUtable) { - printk(KERN_WARNING "INFTL: allocation of PUtable " - "failed (%zd bytes)\n", - inftl->nb_blocks * sizeof(u16)); + inftl->PUtable = kmalloc_array(inftl->nb_blocks, sizeof(u16), + GFP_KERNEL); + if (!inftl->PUtable) return -ENOMEM; - } - inftl->VUtable = kmalloc(inftl->nb_blocks * sizeof(u16), GFP_KERNEL); + inftl->VUtable = kmalloc_array(inftl->nb_blocks, sizeof(u16), + GFP_KERNEL); if (!inftl->VUtable) { kfree(inftl->PUtable); - printk(KERN_WARNING "INFTL: allocation of VUtable " - "failed (%zd bytes)\n", - inftl->nb_blocks * sizeof(u16)); return -ENOMEM; } @@ -336,28 +316,37 @@ static int memcmpb(void *a, int c, int n) static int check_free_sectors(struct INFTLrecord *inftl, unsigned int address, int len, int check_oob) { - u8 buf[SECTORSIZE + inftl->mbd.mtd->oobsize]; struct mtd_info *mtd = inftl->mbd.mtd; size_t retlen; - int i; + int i, ret; + u8 *buf; + + buf = kmalloc(SECTORSIZE + mtd->oobsize, GFP_KERNEL); + if (!buf) + return -ENOMEM; + ret = -1; for (i = 0; i < len; i += SECTORSIZE) { if (mtd_read(mtd, address, SECTORSIZE, &retlen, buf)) - return -1; + goto out; if (memcmpb(buf, 0xff, SECTORSIZE) != 0) - return -1; + goto out; if (check_oob) { if(inftl_read_oob(mtd, address, mtd->oobsize, &retlen, &buf[SECTORSIZE]) < 0) - return -1; + goto out; if (memcmpb(buf + SECTORSIZE, 0xff, mtd->oobsize) != 0) - return -1; + goto out; } address += SECTORSIZE; } - return 0; + ret = 0; + +out: + kfree(buf); + return ret; } /* @@ -385,7 +374,6 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block) _first_? */ /* Use async erase interface, test return code */ - instr->mtd = inftl->mbd.mtd; instr->addr = block * inftl->EraseSize; instr->len = inftl->mbd.mtd->erasesize; /* Erase one physical eraseblock at a time, even though the NAND api @@ -393,9 +381,10 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block) mark only the failed block in the bbt. */ for (physblock = 0; physblock < inftl->EraseSize; physblock += instr->len, instr->addr += instr->len) { - mtd_erase(inftl->mbd.mtd, instr); + int ret; - if (instr->state == MTD_ERASE_FAILED) { + ret = mtd_erase(inftl->mbd.mtd, instr); + if (ret) { printk(KERN_WARNING "INFTL: error while formatting block %d\n", block); goto fail; @@ -562,12 +551,8 @@ int INFTL_mount(struct INFTLrecord *s) /* Temporary buffer to store ANAC numbers. */ ANACtable = kcalloc(s->nb_blocks, sizeof(u8), GFP_KERNEL); - if (!ANACtable) { - printk(KERN_WARNING "INFTL: allocation of ANACtable " - "failed (%zd bytes)\n", - s->nb_blocks * sizeof(u8)); + if (!ANACtable) return -ENOMEM; - } /* * First pass is to explore each physical unit, and construct the |