Merge branch 'locate-handler-buffer' into 'master'

Update LocateHandle,LocateHandleBuffer

Closes #1

See merge request redox-os/uefi!21

crates/uefi/src/boot.rs

@@ -67,8 +67,8 @@ pub struct BootServices {
     RegisterProtocolNotify: extern "efiapi" fn(),
     pub LocateHandle: extern "efiapi" fn(
         SearchType: LocateSearchType,
-        Protocol: &Guid,
-        SearchKey: usize,
+        Protocol: *const Guid,
+        SearchKey: *const usize,
         BufferSize: &mut usize,
         Buffer: *mut Handle,
     ) -> Status,
@@ -113,13 +113,13 @@ pub struct BootServices {
         ProtocolBuffer: *mut Guid,
         ProtocolBufferCount: usize,
     ) -> Status,
-    LocateHandleBuffer: extern "efiapi" fn(
+    pub LocateHandleBuffer: extern "efiapi" fn(
         SearchType: LocateSearchType,
-        Protocol: &Guid,
-        SearchKey: usize,
+        Protocol: *const Guid,
+        SearchKey: *const usize,
         NoHandles: &mut usize,
         Buffer: &mut *mut Handle,
-    ),
+    ) -> Status,
     pub LocateProtocol:
         extern "efiapi" fn(Protocol: &Guid, Registration: usize, Interface: &mut usize) -> Status,
     InstallMultipleProtocolInterfaces: extern "efiapi" fn(),

crates/uefi_std/src/proto.rs

@@ -46,7 +46,7 @@ pub trait Protocol<T: 'static> {
         let status = (system_table().BootServices.LocateHandle)(
             LocateSearchType::ByProtocol,
             &guid,
-            0,
+            core::ptr::null(),
             &mut len,
             handles.as_mut_ptr(),
         );