1185         let r = self.umount();  in drop()  localVariable
1186         if r.is_err() {  in drop()
1189                 r.unwrap_err()  in drop()
1365                 let r = f.read(  in read_at()  localVariable
1371                 return r;  in read_at()
1395                 let r = f.write(fs, &buf[0..len], offset as u64);  in write_at()  localVariable
1397                 return r;  in write_at()
1585         let r = dir.remove(guard.fs.upgrade().unwrap().clone(), name, true);  in unlink()  localVariable
1587         return r;  in unlink()
1612         let r: Result<(), SystemError> =  in rmdir()  localVariable
1614         if r.is_ok() {  in rmdir()
1615             return r;  in rmdir()
1617             let r = r.unwrap_err();  in rmdir()  localVariable
1618             if r == SystemError::ENOTEMPTY {  in rmdir()
1623             return Err(r);  in rmdir()