hpfs: Use EUCLEAN for filesystem errors

Use the error code EUCLEAN for filesystem errors because other
filesystems use this code too.

[ And remove unused EMEMERROR  - Linus ]
Signed-off-by: NMikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

fs/hpfs/hpfs_fn.h

@@ -26,8 +26,7 @@
 #include "hpfs.h"
 
 #define EIOERROR  EIO
-#define EFSERROR  EPERM
-#define EMEMERROR ENOMEM
+#define EFSERROR  EUCLEAN
 
 #define ANODE_ALLOC_FWD	512
 #define FNODE_ALLOC_FWD	0