Calling BDiskDeviceSystem::CommitModifications() will delete all BPartition

children of the device and recreate them so that they are updated to any
changes. MainWindow::_Initialize() was using a stale BPartition pointer
after calling CommitModifications(). Now the pointer is recreated from the
id. Should fix #2548. Untested.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26643 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/drivesetup/MainWindow.cpp

@@ -808,6 +808,11 @@ MainWindow::_Initialize(BDiskDevice* disk, partition_id selectedPartition,
 
 	// commit
 	ret = modificationPreparer.CommitModifications();
+
+	// The partition pointer is toast now! Use the partition id to
+	// retrieve it again.
+	partition = disk->FindDescendant(selectedPartition);
+
 	if (ret == B_OK) {
 		_DisplayPartitionError("The partition %s has been successfully "
 			"initialized.\n", partition);