xfs: range check ri_cnt when recovering log items

xfs: range check ri_cnt when recovering log items

commit c3499852fd93b969b5ef82700cade5dd2db2e68e upstream.

Range check the region counter when we're reassembling regions from log
items during log recovery.  In the old days ASSERT would halt the
kernel, but this isn't true any more so we have to make an explicit
error return.

Coverity-id: 1132508
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>