diff options
Diffstat (limited to 'drivers/mtd/nftlmount.c')
| -rw-r--r-- | drivers/mtd/nftlmount.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c index a6fbfa4e5799..27184e3874db 100644 --- a/drivers/mtd/nftlmount.c +++ b/drivers/mtd/nftlmount.c @@ -199,13 +199,16 @@ device is already correct. nftl->lastEUN = nftl->nb_blocks - 1; /* memory alloc */ - nftl->EUNtable = kmalloc(nftl->nb_blocks * sizeof(u16), GFP_KERNEL); + nftl->EUNtable = kmalloc_array(nftl->nb_blocks, sizeof(u16), + GFP_KERNEL); if (!nftl->EUNtable) { printk(KERN_NOTICE "NFTL: allocation of EUNtable failed\n"); return -ENOMEM; } - nftl->ReplUnitTable = kmalloc(nftl->nb_blocks * sizeof(u16), GFP_KERNEL); + nftl->ReplUnitTable = kmalloc_array(nftl->nb_blocks, + sizeof(u16), + GFP_KERNEL); if (!nftl->ReplUnitTable) { kfree(nftl->EUNtable); printk(KERN_NOTICE "NFTL: allocation of ReplUnitTable failed\n"); @@ -272,28 +275,37 @@ static int memcmpb(void *a, int c, int n) static int check_free_sectors(struct NFTLrecord *nftl, unsigned int address, int len, int check_oob) { - u8 buf[SECTORSIZE + nftl->mbd.mtd->oobsize]; struct mtd_info *mtd = nftl->mbd.mtd; size_t retlen; - int i; + int i, ret; + u8 *buf; + + buf = kmalloc(SECTORSIZE + mtd->oobsize, GFP_KERNEL); + if (!buf) + return -1; + 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(nftl_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; } /* NFTL_format: format a Erase Unit by erasing ALL Erase Zones in the Erase Unit and |