xfs: fix uninitialized variables in xrep_calc_ag_resblks

If we can't read the AGF header, we never actually set a value for
freelen and usedlen.  These two variables are used to make the worst
case estimate of btree size, so it's safe to set them to the AG size as
a fallback.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
1 file changed