xfs: check for valid indices in xfs_iext_get_ext and xfs_iext_idx_to_irec

Based on an earlier patch from Lachlan McIlroy.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Lachlan McIlroy <lmcilroy@redhat.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Christoph Hellwig 2011-05-11 15:04:11 +00:00 • committed by Alex Elder
commit 87bef1812d