fdt: copy FDT data from kernel_args to kernel heap

Change-Id: Id7b18c582357b8eeaa2e6b7956da3db35ebded3a Reviewed-on: https://review.haiku-os.org/c/haiku/+/6599 Tested-by: Commit checker robot <[email protected]> Reviewed-by: Adrien Destugues <[email protected]>
2023-06-30 00:29:58 +00:00
parent 2075595c78
commit 5d39116f10
1 changed files with 9 additions and 0 deletions
@@ -225,6 +225,15 @@ fdt_bus_init(device_node* node, void** cookie)
 	if (!bus.IsSet())
 		return B_NO_MEMORY;

+	// gFDT is stored in kernel_args and will be freed, so copy it to kernel heap.
+	size_t size = fdt_totalsize(gFDT);
+	void* newFDT = malloc(size);
+	if (newFDT == NULL)
+		return B_NO_MEMORY;
+
+	memcpy(newFDT, gFDT, size);
+	gFDT = newFDT;
+
 	bus->node = node;
 	*cookie = bus.Detach();
 	return B_OK;