Merge pull request #42 from martinellimarco/master

Fix for #41 - BSOD if no IVSHMEM device is found but UseIVSHMEM is set
duncanthrax · May 11, 2019 · 964d477 · 964d477
2 parents b2b5767 + e7b6360
commit 964d477
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/Scream/ivshmemsavedata.cpp b/Scream/ivshmemsavedata.cpp
@@ -20,6 +20,10 @@
 
 //=============================================================================
 BOOLEAN CIVSHMEMSaveData::RequestMMAP() {
+	if (!m_ivshmem.devObj) {
+		return FALSE;
+	}
+
     IO_STATUS_BLOCK ioStatus = { 0 };
     KEVENT event;
     KeInitializeEvent(&event, NotificationEvent, FALSE);
@@ -51,6 +55,10 @@ BOOLEAN CIVSHMEMSaveData::RequestMMAP() {
 
 //=============================================================================
 void CIVSHMEMSaveData::ReleaseMMAP() {
+	if (!m_ivshmem.devObj) {
+		return;
+	}
+
     IO_STATUS_BLOCK ioStatus = { 0 };
     KEVENT event;
     KeInitializeEvent(&event, NotificationEvent, FALSE);