[U-Boot] fs: check FAT cluster size

[Tom Rini]

On Mon, Nov 26, 2018 at 03:56:57PM +0100, Patrick Wildt wrote:

> The cluster size specifies how many sectors make up a cluster.  A
> cluster size of zero makes no sense, as it would mean that the
> cluster is made up of no sectors.  This will later lead into a
> division by zero in sect_to_clust(), so better take care of that
> early.
> 
> The MAX_CLUSTSIZE define can reduced using a define to make some
> room in low-memory system.  Unfortunately if the code reads a
> filesystem with a bigger cluster size it will overflow the buffer.
> 
> Signed-off-by: Patrick Wildt <patrick at blueri.se>

Applied to u-boot/master, thanks!

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: not available
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20181207/beadf5ba/attachment.sig>