Re: [PATCH 1/1] fs/omfs/inode.c: replace count*size kzalloc by kcalloc

From: Linus Torvalds
Date: Wed Jun 25 2014 - 14:27:26 EST


On Wed, Jun 25, 2014 at 11:17 AM, Fabian Frederick <fabf@xxxxxxxxx> wrote:
> kcalloc manages count*sizeof overflow.

As far as I can tell, any overflow has happened long before, in

bitmap_size = DIV_ROUND_UP(sbi->s_num_blocks, 8);

where 'sbi->s_num_blocks' i san u64, and 'bitmap_size' is an 'int'.

I don't think the patch is necessarily a bad thing, but I think it
might be more important to sanity-check that part instead.

Linus
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