UninitializeContents() returns an error code now.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4841 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/disk_device_manager/KPartition.h

@@ -170,7 +170,7 @@ public:
 	void SetChangeFlags(uint32 flags);
 	uint32 ChangeFlags() const;
 	int32 ChangeCounter() const;
-	void UninitializeContents(bool logChanges = true);
+	status_t UninitializeContents(bool logChanges = true);
 
 	void SetAlgorithmData(uint32 data);
 	uint32 AlgorithmData() const;

src/kernel/core/disk_device_manager/KPartition.cpp

@@ -834,7 +834,7 @@ KPartition::ChangeCounter() const
 }
 
 // UninitializeContents
-void
+status_t
 KPartition::UninitializeContents(bool logChanges)
 {
 	if (DiskSystem()) {
@@ -844,7 +844,8 @@ KPartition::UninitializeContents(bool logChanges)
 					   | B_PARTITION_CHANGED_FLAGS;
 		// children
 		if (CountChildren() > 0) {
-			RemoveAllChildren();
+			if (!RemoveAllChildren())
+				return B_ERROR;
 			flags |= B_PARTITION_CHANGED_CHILDREN;
 		}
 		// volume
@@ -890,6 +891,7 @@ KPartition::UninitializeContents(bool logChanges)
 						   | B_PARTITION_CHANGED_REPAIR);
 		}
 	}
+	return B_OK;
 }
 
 // SetAlgorithmData