01/01: [NTOSKRNL] Properly reset pinning state on pinning failure

[Pierre Schweitzer]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=b8e4af606a1291330ebdd…

commit b8e4af606a1291330ebddde58f167e60ac66299f
Author:     Pierre Schweitzer <pierre(a)reactos.org>
AuthorDate: Sun Aug 26 22:56:25 2018 +0200
Commit:     Pierre Schweitzer <pierre(a)reactos.org>
CommitDate: Sun Aug 26 22:56:25 2018 +0200

    [NTOSKRNL] Properly reset pinning state on pinning failure
---
 ntoskrnl/cc/pin.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/ntoskrnl/cc/pin.c b/ntoskrnl/cc/pin.c
index 3a0ee6ed9d..65525eed83 100644
--- a/ntoskrnl/cc/pin.c
+++ b/ntoskrnl/cc/pin.c
@@ -191,6 +191,12 @@ CcPinMappedData (
         Result = ExAcquireSharedStarveExclusive(&iBcb->Lock, BooleanFlagOn(Flags,
PIN_WAIT));
     }
 
+    if (!Result)
+    {
+        iBcb->Pinned = FALSE;
+        iBcb->Vacb->PinCount--;
+    }
+
     return Result;
 }