host: call LoadImage with parent handle and init child handle

Initialize the child image suppress the following valgrind errors:

==17180== Conditional jump or move depends on uninitialised value(s)
==17180==    at 0x1169C8: install_protocol_interface (protocol.c:62)
==17180==    by 0x115891: interface_init (interface.c:51)
==17180==    by 0x110A5E: load_image (image.c:69)
==17180==    by 0x10BCE9: load_and_execute (main.c:193)
==17180==    by 0x10C3EA: main (main.c:374)
==17180==  Uninitialised value was created by a stack allocation
==17180==    at 0x10BC74: load_and_execute (main.c:181)

Signed-off-by: leo <[email protected]>

Author: leo

host/main.c

@@ -181,7 +181,7 @@ static EFI_STATUS load_and_execute(const char *path,
 {
 	EFI_STATUS ret;
 	EFI_RESET_SYSTEM saved_reset_rs;
-	EFI_HANDLE image;
+	EFI_HANDLE image = NULL;
 	void *data;
 	UINTN size;
 	int setjmpret;
@@ -191,7 +191,7 @@ static EFI_STATUS load_and_execute(const char *path,
 		return ret;
 
 	ret = uefi_call_wrapper(st->BootServices->LoadImage, 6,
-				FALSE, image, NULL,
+				FALSE, parent, NULL,
 				data, size, &image);
 	free(data);
 	if (EFI_ERROR(ret)) {