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-rw-r--r--fs/gfs2/export.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/gfs2/export.c b/fs/gfs2/export.c
index 3f717285ee48..756d05779200 100644
--- a/fs/gfs2/export.c
+++ b/fs/gfs2/export.c
@@ -134,7 +134,9 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb,
struct gfs2_sbd *sdp = sb->s_fs_info;
struct inode *inode;
- inode = gfs2_lookup_by_inum(sdp, inum->no_addr, &inum->no_formal_ino,
+ if (!inum->no_formal_ino)
+ return ERR_PTR(-ESTALE);
+ inode = gfs2_lookup_by_inum(sdp, inum->no_addr, inum->no_formal_ino,
GFS2_BLKST_DINODE);
if (IS_ERR(inode))
return ERR_CAST(inode);