xfs: add missing rmap error return

xfs_rmap_lookup_le_range can return errors, so we need to check for
them and bail out.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>

diff --git a/fs/xfs/libxfs/xfs_rmap.c b/fs/xfs/libxfs/xfs_rmap.c
index fba8d27..f7769ed 100644 (file)
--- a/fs/xfs/libxfs/xfs_rmap.c
+++ b/fs/xfs/libxfs/xfs_rmap.c
@@ -1374,6 +1374,8 @@ xfs_rmap_convert_shared(
         */
        error = xfs_rmap_lookup_le_range(cur, bno, owner, offset, flags,
                        &PREV, &i);
+       if (error)
+               goto done;
        XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
 
        ASSERT(PREV.rm_offset <= offset);