Re: linux-4.6/drivers/crypto/ux500/hash/hash_core.c: 2 * possible bad size ?

From: Herbert Xu
Date: Wed May 18 2016 - 03:47:22 EST


On Mon, May 16, 2016 at 07:13:12PM +0100, David Binderman wrote:
> Hello there,
>
> 1.
>
> linux-4.6/drivers/crypto/ux500/hash/hash_core.c:784]: (warning) Division by
> result of sizeof(). memmove() expects a size in bytes, did you intend to
> multiply instead?
>
> Source code is
>
> memmove(req_ctx->state.buffer,
> device_data->state.buffer,
> HASH_BLOCK_SIZE / sizeof(u32));
>
> Maybe better code
>
> memmove(req_ctx->state.buffer,
> device_data->state.buffer,
> HASH_BLOCK_SIZE);
>
> 2.
>
> linux-4.6/drivers/crypto/ux500/hash/hash_core.c:835]: (warning) Division by
> result of sizeof(). memmove() expects a size in bytes, did you intend to
> multiply instead?
>
> Duplicate.

Thanks for noticing these bugs. This driver hasn't been maintained
since 2012, so unless someone steps up I'm going to just delete it.

Cheers,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt