Changeset 616 for soft/giet_vm/giet_fat32

Timestamp:

Jul 16, 2015, 3:29:08 PM (9 years ago)

Author:

guerin

Message:

fat32: check for LFN entry before invalidating it

Otherwise we could invalidate previous entries accidentally...

File:

• soft/giet_vm/giet_fat32/fat32.c (modified) (2 diffs)

soft/giet_vm/giet_fat32/fat32.c

@@ -1969 +1969 @@
     while ( nb_lfn )
     {
-        if (offset == 0)  // me must load buffer for (cluster_id - 1) 
+        if (offset == 0)  // we must load buffer for (cluster_id - 1)
         {
             if ( _get_buffer_from_cache( inode->parent,
@@ -1976 +1976 @@
             buffer       = pdesc->buffer;
             pdesc->dirty = 1;
-            offset       = 4064;
-        }
-        else
-        {
-            offset = offset - 32;
-        }
+            offset       = 4096;
+        }
+
+        offset = offset - 32;
+
+        // check for LFN entry
+        if ( _read_entry( DIR_ATTR , buffer + offset , 0 ) != ATTR_LONG_NAME_MASK )
+            break;
 
         // invalidate LFN entry