fix node names

kernel/src/dev/fdt.rs

@@ -73,7 +73,7 @@ impl Debug for Prop {
     fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         f.debug_struct("Prop")
             .field("name", &self.name)
-            .field("data_len", &self.data)
+            .field("data_len", &self.data.len())
             .finish()
     }
 }
@@ -115,16 +115,18 @@ impl Iterator for NodeIter {
             return None;
         }
         let name_start = self.pos;
+        let mut extra = 0;
         'outer: loop {
             let bytes = &self.pos[..4];
             self.pos = &self.pos[4..];
-            for byte in bytes {
+            for (i, byte) in bytes.iter().enumerate() {
                 if *byte == 0 {
+                    extra = 4 - i;
                     break 'outer;
                 }
             }
         }
-        let name = unsafe { transmute(&name_start[..name_start.len() - self.pos.len()]) };
+        let name = unsafe { transmute(&name_start[..name_start.len() - self.pos.len() - extra]) };
         let node_start = self.pos;
         let node_data = if let Some(prop) = (PropIter {
             strings: self.strings,