hostfs: Handle bogus st.mode

Make sure that we return EIO if one passes an invalid st.mode
into hostfs.

Signed-off-by: Richard Weinberger <richard@nod.at>

1 files changed, 4 insertions, 2 deletions

diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 92b008f564a4..8163aac81c21 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -534,11 +534,13 @@ static int read_name(struct inode *ino, char *name)
                 init_special_inode(ino, st.mode & S_IFMT, rdev);
                 ino->i_op = &hostfs_iops;
                 break;
-
-        default:
+        case S_IFREG:
                 ino->i_op = &hostfs_iops;
                 ino->i_fop = &hostfs_file_fops;
                 ino->i_mapping->a_ops = &hostfs_aops;
+                break;
+        default:
+                return -EIO;
         }
 
         ino->i_ino = st.ino;