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-rw-r--r--device_tree.c76
1 files changed, 51 insertions, 25 deletions
diff --git a/device_tree.c b/device_tree.c
index f4a78c8..751538e 100644
--- a/device_tree.c
+++ b/device_tree.c
@@ -72,56 +72,81 @@ fail:
return NULL;
}
-int qemu_devtree_setprop(void *fdt, const char *node_path,
- const char *property, void *val_array, int size)
+static int findnode_nofail(void *fdt, const char *node_path)
{
int offset;
offset = fdt_path_offset(fdt, node_path);
- if (offset < 0)
- return offset;
+ if (offset < 0) {
+ fprintf(stderr, "%s Couldn't find node %s: %s\n", __func__, node_path,
+ fdt_strerror(offset));
+ exit(1);
+ }
+
+ return offset;
+}
+
+int qemu_devtree_setprop(void *fdt, const char *node_path,
+ const char *property, void *val_array, int size)
+{
+ int r;
+
+ r = fdt_setprop(fdt, findnode_nofail(fdt, node_path), property, val_array, size);
+ if (r < 0) {
+ fprintf(stderr, "%s: Couldn't set %s/%s: %s\n", __func__, node_path,
+ property, fdt_strerror(r));
+ exit(1);
+ }
- return fdt_setprop(fdt, offset, property, val_array, size);
+ return r;
}
int qemu_devtree_setprop_cell(void *fdt, const char *node_path,
const char *property, uint32_t val)
{
- int offset;
+ int r;
- offset = fdt_path_offset(fdt, node_path);
- if (offset < 0)
- return offset;
+ r = fdt_setprop_cell(fdt, findnode_nofail(fdt, node_path), property, val);
+ if (r < 0) {
+ fprintf(stderr, "%s: Couldn't set %s/%s = %#08x: %s\n", __func__,
+ node_path, property, val, fdt_strerror(r));
+ exit(1);
+ }
- return fdt_setprop_cell(fdt, offset, property, val);
+ return r;
}
int qemu_devtree_setprop_string(void *fdt, const char *node_path,
const char *property, const char *string)
{
- int offset;
+ int r;
- offset = fdt_path_offset(fdt, node_path);
- if (offset < 0)
- return offset;
+ r = fdt_setprop_string(fdt, findnode_nofail(fdt, node_path), property, string);
+ if (r < 0) {
+ fprintf(stderr, "%s: Couldn't set %s/%s = %s: %s\n", __func__,
+ node_path, property, string, fdt_strerror(r));
+ exit(1);
+ }
- return fdt_setprop_string(fdt, offset, property, string);
+ return r;
}
int qemu_devtree_nop_node(void *fdt, const char *node_path)
{
- int offset;
+ int r;
- offset = fdt_path_offset(fdt, node_path);
- if (offset < 0)
- return offset;
+ r = fdt_nop_node(fdt, findnode_nofail(fdt, node_path));
+ if (r < 0) {
+ fprintf(stderr, "%s: Couldn't nop node %s: %s\n", __func__, node_path,
+ fdt_strerror(r));
+ exit(1);
+ }
- return fdt_nop_node(fdt, offset);
+ return r;
}
int qemu_devtree_add_subnode(void *fdt, const char *name)
{
- int offset;
char *dupname = g_strdup(name);
char *basename = strrchr(dupname, '/');
int retval;
@@ -133,12 +158,13 @@ int qemu_devtree_add_subnode(void *fdt, const char *name)
basename[0] = '\0';
basename++;
- offset = fdt_path_offset(fdt, dupname);
- if (offset < 0) {
- return offset;
+ retval = fdt_add_subnode(fdt, findnode_nofail(fdt, dupname), basename);
+ if (retval < 0) {
+ fprintf(stderr, "FDT: Failed to create subnode %s: %s\n", name,
+ fdt_strerror(retval));
+ exit(1);
}
- retval = fdt_add_subnode(fdt, offset, basename);
g_free(dupname);
return retval;
}