[U-Boot] [U-Boot, 2/3] ext4: Fix handling of direntlen in unlink_filename

[Tom Rini]

On Sun, Oct 09, 2016 at 08:15:27PM +0200, Stefan Brüns wrote:

> The direntlen checks were quite bogus, i.e. the loop termination used
> "len + offset == blocksize" (exact match only), and checked for a
> direntlen less than 0. The latter can never happen as the len is
> unsigned, this has been reported by Coverity, CID 153384.
> 
> Use the same code as in search_dir for directory traversal. This code
> has the correct checks for direntlen >= sizeof(struct dirent), and
> offset < blocksize.
> 
> Signed-off-by: Stefan Brüns <stefan.bruens at rwth-aachen.de>
> Reported-by: Coverity (CID: 153383, 153384)
> Reviewed-by: Tom Rini <trini at konsulko.com>
> Reviewed-by: Lukasz Majewski <l.majewski at samsung.com>

Applied to u-boot/master, thanks!

-- 
Tom
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