[PATCH v3] efi_loader: initialize return values in efi_uninstall_multiple_protocol_interfaces_int()

[Ilias Apalodimas]

If the va_list we got handed over contains no protocols we must return
EFI_SUCCESS.  However in that case the current code just returns
an unintialized value.
Fix that by setting the return value in the variable definition

Addresses-Coverity: CID 376195:  ("Uninitialized variables  (UNINIT)")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas at linaro.org>
---
changes since v2:
- Don't return immediately on NULL protocols.  Instead go through the list of
  already uninstalled protocols and reinstall them
changes since v1:
- return EFI_SUCCESS instead of EFI_INVALID_PARAMETER
 lib/efi_loader/efi_boottime.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index a56021559bbf..253f9f75ef63 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -2754,7 +2754,7 @@ efi_uninstall_multiple_protocol_interfaces_int(efi_handle_t handle,
 {
 	const efi_guid_t *protocol;
 	void *protocol_interface;
-	efi_status_t ret;
+	efi_status_t ret = EFI_SUCCESS;
 	size_t i = 0;
 	efi_va_list argptr_copy;
 
-- 
2.38.1