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-rw-r--r--drivers/of/fdt.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index a0a7b76be381..ae4d07bcce24 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -472,7 +472,8 @@ static int unflatten_dt_nodes(const void *blob,
static void *__unflatten_device_tree(const void *blob,
struct device_node *dad,
struct device_node **mynodes,
- void *(*dt_alloc)(u64 size, u64 align))
+ void *(*dt_alloc)(u64 size, u64 align),
+ bool detached)
{
int size;
void *mem;
@@ -516,6 +517,11 @@ static void *__unflatten_device_tree(const void *blob,
pr_warning("End of tree marker overwritten: %08x\n",
be32_to_cpup(mem + size));
+ if (detached) {
+ of_node_set_flag(*mynodes, OF_DETACHED);
+ pr_debug("unflattened tree is detached\n");
+ }
+
pr_debug(" <- unflatten_device_tree()\n");
return mem;
}
@@ -548,7 +554,8 @@ void *of_fdt_unflatten_tree(const unsigned long *blob,
void *mem;
mutex_lock(&of_fdt_unflatten_mutex);
- mem = __unflatten_device_tree(blob, dad, mynodes, &kernel_tree_alloc);
+ mem = __unflatten_device_tree(blob, dad, mynodes, &kernel_tree_alloc,
+ true);
mutex_unlock(&of_fdt_unflatten_mutex);
return mem;
@@ -1224,7 +1231,7 @@ bool __init early_init_dt_scan(void *params)
void __init unflatten_device_tree(void)
{
__unflatten_device_tree(initial_boot_params, NULL, &of_root,
- early_init_dt_alloc_memory_arch);
+ early_init_dt_alloc_memory_arch, false);
/* Get pointer to "/chosen" and "/aliases" nodes for use everywhere */
of_alias_scan(early_init_dt_alloc_memory_arch);