[arty] 34600: Patch by Cameron Gutman (aicommander <at> gmail <dot> com) - Fixes some issues with releasing locks - Verify that we have an MDL before trying to unlock it

Author: arty
Date: Sat Jul 19 23:33:53 2008
New Revision: 34600

URL: http://svn.reactos.org/svn/reactos?rev=34600&view=rev
Log:
Patch by Cameron Gutman (aicommander <at> gmail <dot> com)
- Fixes some issues with releasing locks
- Verify that we have an MDL before trying to unlock it

Modified:
    trunk/reactos/drivers/network/afd/afd/connect.c
    trunk/reactos/drivers/network/afd/afd/context.c
    trunk/reactos/drivers/network/afd/afd/info.c
    trunk/reactos/drivers/network/afd/afd/listen.c
    trunk/reactos/drivers/network/afd/afd/read.c
    trunk/reactos/drivers/network/afd/afd/select.c

Modified: trunk/reactos/drivers/network/afd/afd/connect.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/afd/afd/co…
==============================================================================
--- trunk/reactos/drivers/network/afd/afd/connect.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/afd/afd/connect.c [iso-8859-1] Sat Jul 19 23:33:53 2008
@@ -140,7 +140,7 @@
     if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, FALSE );
     if( !(ConnectReq = LockRequest( Irp, IrpSp )) )
 	return UnlockAndMaybeComplete( FCB, STATUS_NO_MEMORY, Irp,
-				       0, NULL, TRUE );
+				       0, NULL, FALSE );
 
     AFD_DbgPrint(MID_TRACE,("Connect request:\n"));
 #if 0

Modified: trunk/reactos/drivers/network/afd/afd/context.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/afd/afd/co…
==============================================================================
--- trunk/reactos/drivers/network/afd/afd/context.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/afd/afd/context.c [iso-8859-1] Sat Jul 19 23:33:53 2008
@@ -20,7 +20,7 @@
     PAFD_FCB FCB = FileObject->FsContext;
     UINT ContextSize = IrpSp->Parameters.DeviceIoControl.OutputBufferLength;
 
-    if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, TRUE );
+    if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, FALSE );
 
     if( FCB->ContextSize < ContextSize ) ContextSize = FCB->ContextSize;
 
@@ -43,7 +43,7 @@
     PFILE_OBJECT FileObject = IrpSp->FileObject;
     PAFD_FCB FCB = FileObject->FsContext;
 
-    if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, TRUE );
+    if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, FALSE );
 
     if( FCB->ContextSize <
 	IrpSp->Parameters.DeviceIoControl.InputBufferLength ) {

Modified: trunk/reactos/drivers/network/afd/afd/info.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/afd/afd/in…
==============================================================================
--- trunk/reactos/drivers/network/afd/afd/info.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/afd/afd/info.c [iso-8859-1] Sat Jul 19 23:33:53 2008
@@ -26,7 +26,7 @@
 
     _SEH_TRY {
 	if( !SocketAcquireStateLock( FCB ) ) {
-	    Status = LostSocket( Irp, TRUE );
+	    Status = LostSocket( Irp, FALSE );
 	    _SEH_YIELD(return Status);
 	}
 

Modified: trunk/reactos/drivers/network/afd/afd/listen.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/afd/afd/li…
==============================================================================
--- trunk/reactos/drivers/network/afd/afd/listen.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/afd/afd/listen.c [iso-8859-1] Sat Jul 19 23:33:53 2008
@@ -157,7 +157,7 @@
 
     AFD_DbgPrint(MID_TRACE,("Called on %x\n", FCB));
 
-    if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, TRUE );
+    if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, FALSE );
 
     if( !(ListenReq = LockRequest( Irp, IrpSp )) )
 	return UnlockAndMaybeComplete( FCB, STATUS_NO_MEMORY, Irp,
@@ -209,7 +209,7 @@
 
     AFD_DbgPrint(MID_TRACE,("Called\n"));
 
-    if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, TRUE );
+    if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, FALSE );
 
     if( !IsListEmpty( &FCB->PendingConnections ) ) {
 	PLIST_ENTRY PendingConn = FCB->PendingConnections.Flink;
@@ -246,7 +246,7 @@
 
     AFD_DbgPrint(MID_TRACE,("Called\n"));
 
-    if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, TRUE );
+    if( !SocketAcquireStateLock( FCB ) ) return LostSocket( Irp, FALSE );
 
     FCB->EventsFired &= ~AFD_EVENT_ACCEPT;
 

Modified: trunk/reactos/drivers/network/afd/afd/read.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/afd/afd/re…
==============================================================================
--- trunk/reactos/drivers/network/afd/afd/read.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/afd/afd/read.c [iso-8859-1] Sat Jul 19 23:33:53 2008
@@ -154,7 +154,7 @@
                 FCB->Overread ? STATUS_END_OF_FILE : STATUS_SUCCESS;
             NextIrp->IoStatus.Information = 0;
             if( NextIrp == Irp ) RetStatus = Status;
-            UnlockRequest( NextIrp, IoGetCurrentIrpStackLocation( NextIrp ) );
+            if( NextIrp->MdlAddress ) UnlockRequest( NextIrp,
IoGetCurrentIrpStackLocation( NextIrp ) );
             IoCompleteRequest( NextIrp, IO_NETWORK_INCREMENT );
             FCB->Overread = TRUE;
             //FCB->PollState |= AFD_EVENT_DISCONNECT;
@@ -198,7 +198,7 @@
 		NextIrp->IoStatus.Status = Status;
 		NextIrp->IoStatus.Information = TotalBytesCopied;
                 if( NextIrp == Irp ) RetStatus = Status;
-		UnlockRequest( NextIrp, IoGetCurrentIrpStackLocation( NextIrp ) );
+		if( NextIrp->MdlAddress ) UnlockRequest( NextIrp, IoGetCurrentIrpStackLocation(
NextIrp ) );
 		IoCompleteRequest( NextIrp, IO_NETWORK_INCREMENT );
 	    }
 	}

Modified: trunk/reactos/drivers/network/afd/afd/select.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/network/afd/afd/se…
==============================================================================
--- trunk/reactos/drivers/network/afd/afd/select.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/network/afd/afd/select.c [iso-8859-1] Sat Jul 19 23:33:53 2008
@@ -274,13 +274,17 @@
 	(PAFD_EVENT_SELECT_INFO)LockRequest( Irp, IrpSp );
     PAFD_FCB FCB = FileObject->FsContext;
 
+    if ( !EventSelectInfo ) {
+         return UnlockAndMaybeComplete( FCB, STATUS_NO_MEMORY, Irp,
+				   0, NULL, FALSE );
+    }
     AFD_DbgPrint(MID_TRACE,("Called (Event %x Triggers %x)\n",
 			    EventSelectInfo->EventObject,
 			    EventSelectInfo->Events));
 
     if( !SocketAcquireStateLock( FCB ) ) {
 	UnlockRequest( Irp, IrpSp );
-	return LostSocket( Irp, FALSE );
+	return LostSocket( Irp, TRUE );
     }
 
     FCB->EventSelectTriggers = FCB->EventsFired = 0;
@@ -319,9 +323,14 @@
 
     AFD_DbgPrint(MID_TRACE,("Called (FCB %x)\n", FCB));
 
+    if ( !EnumReq ) {
+         return UnlockAndMaybeComplete( FCB, STATUS_NO_MEMORY, Irp,
+				   0, NULL, FALSE );
+    }
+
     if( !SocketAcquireStateLock( FCB ) ) {
 	UnlockRequest( Irp, IrpSp );
-	return LostSocket( Irp, FALSE );
+	return LostSocket( Irp, TRUE );
     }
 
     EnumReq->PollEvents = FCB->PollState;