#if _FS_REENTRANT
                res = validate(fp->fs, fp->id);
                if (res == FR_OK) {
-                       res = dec_lock(fp->fs, fp->lockid);     
+                       res = dec_lock(fp->fs, fp->lockid);
                        unlock_fs(fp->fs, FR_OK);
                }
 #else
                        res++;
                }
                do {
-                       cc = f_putc(s[--i], fil); 
+                       cc = f_putc(s[--i], fil);
                        res++;
                } while (i && cc != EOF);
                if (cc != EOF) cc = 0;
 
 #endif /* !_FS_READONLY */
 #endif /* _USE_STRFUNC */
+