dm: core: Fix offset_to_ofnode() with invalid offset
If the offset is -1 this function correctly sets up a null ofnode. But if
the offset is any other negative number (e.g. -FDT_ERR_BADPATH) then it
does the wrong thing.
An offset of -1 in ofnode indicates that the ofnode is not valid. Any
other negative value is not handled by ofnode_valid(). We could of course
change that function, but it seems much better to always use the same
value for an invalid node.
Fix it by setting the offset to -1 if it is invalid for any reason.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h
index 5c4cbf0..4282169 100644
--- a/include/dm/ofnode.h
+++ b/include/dm/ofnode.h
@@ -118,7 +118,7 @@
if (of_live_active())
node.np = NULL;
else
- node.of_offset = of_offset;
+ node.of_offset = of_offset >= 0 ? of_offset : -1;
return node;
}