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[31/72] dt: allow add_subnode to create root subnodes

Message ID 1340492856-21126-32-git-send-email-agraf@suse.de
State New
Headers show

Commit Message

Alexander Graf June 23, 2012, 11:06 p.m. UTC 
Our subnode creation helper can't handle creation of root subnodes,
like "/memory". Fix this by allowing the parent node to be an empty
string, indicating the root node.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@petalogix.com>
---
 device_tree.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
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Patch

diff --git a/device_tree.c b/device_tree.c
index 86a694c..94a239e 100644
--- a/device_tree.c
+++ b/device_tree.c
@@ -151,6 +151,7 @@  int qemu_devtree_add_subnode(void *fdt, const char *name)
     char *dupname = g_strdup(name);
     char *basename = strrchr(dupname, '/');
     int retval;
+    int parent = 0;
 
     if (!basename) {
         g_free(dupname);
@@ -160,7 +161,11 @@  int qemu_devtree_add_subnode(void *fdt, const char *name)
     basename[0] = '\0';
     basename++;
 
-    retval = fdt_add_subnode(fdt, findnode_nofail(fdt, dupname), basename);
+    if (dupname[0]) {
+        parent = findnode_nofail(fdt, dupname);
+    }
+
+    retval = fdt_add_subnode(fdt, parent, basename);
     if (retval < 0) {
         fprintf(stderr, "FDT: Failed to create subnode %s: %s\n", name,
                 fdt_strerror(retval));