diff options
Diffstat (limited to 'include/libfdt.h')
| -rw-r--r-- | include/libfdt.h | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/include/libfdt.h b/include/libfdt.h index f3b61c9427..398748c5c4 100644 --- a/include/libfdt.h +++ b/include/libfdt.h @@ -176,24 +176,27 @@ int fdt_next_subnode(const void *fdt, int offset); /** * fdt_for_each_subnode - iterate over all subnodes of a parent * + * @node: child node (int, lvalue) + * @fdt: FDT blob (const void *) + * @parent: parent node (int) + * * This is actually a wrapper around a for loop and would be used like so: * - * fdt_for_each_subnode(fdt, node, parent) { - * ... - * use node + * fdt_for_each_subnode(node, fdt, parent) { + * Use node * ... * } * - * Note that this is implemented as a macro and node is used as iterator in - * the loop. It should therefore be a locally allocated variable. The parent - * variable on the other hand is never modified, so it can be constant or - * even a literal. + * if ((node < 0) && (node != -FDT_ERR_NOT_FOUND)) { + * Error handling + * } + * + * Note that this is implemented as a macro and @node is used as + * iterator in the loop. The parent variable be constant or even a + * literal. * - * @fdt: FDT blob (const void *) - * @node: child node (int) - * @parent: parent node (int) */ -#define fdt_for_each_subnode(fdt, node, parent) \ +#define fdt_for_each_subnode(node, fdt, parent) \ for (node = fdt_first_subnode(fdt, parent); \ node >= 0; \ node = fdt_next_subnode(fdt, node)) |