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authorVinit Agnihotri <vinit.agnihotri@gmail.com>2007-07-10 06:04:59 -0400
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2007-07-18 09:58:12 -0400
commitd08c3b78b8c46a01b8fa59037a0d9fbb777fb465 (patch)
treec27d7d436864175107fe8e2b1de3a11b928c975a /drivers/ata
parent2f3cdb55eef4fa1398965e893f731fb6e6312d34 (diff)
UBI: fix overflow bug
I was experiencing overflows in multiplications for volume->used_bytes in vmt.c & vtbl.c, while creating & resizing large volumes. vol->used_bytes is long long however its 2 operands vol->used_ebs & vol->usable_leb_size are int. So their multiplication for larger values causes integer overflows. Typecasting them solves the problem. My machine & flash details: 64Bit dual-core AMD opteron, 1 GB RAM, linux 2.6.18.3. mtd size = 6GB, volume size= 5GB, peb_size = 4MB. heres patch which does the fix. Signed-off-by: Vinit Agnihotri <vinit.agnihotri@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/ata')
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