Mesa (master): swr: [rasterizer jitter] fix potential jit exit crash

[Tim Rowley]

Module: Mesa
Branch: master
Commit: f438b7ba8152dd5c70cbab6b79631338a800738e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f438b7ba8152dd5c70cbab6b79631338a800738e

Author: Tim Rowley <timothy.o.rowley at intel.com>
Date:   Mon Jul 25 17:05:55 2016 -0600

swr: [rasterizer jitter] fix potential jit exit crash

Signed-off-by: Tim Rowley <timothy.o.rowley at intel.com>

---

 src/gallium/drivers/swr/rasterizer/jitter/JitManager.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/swr/rasterizer/jitter/JitManager.cpp b/src/gallium/drivers/swr/rasterizer/jitter/JitManager.cpp
index c6cbccf..6637cdd 100644
--- a/src/gallium/drivers/swr/rasterizer/jitter/JitManager.cpp
+++ b/src/gallium/drivers/swr/rasterizer/jitter/JitManager.cpp
@@ -352,6 +352,8 @@ void JitManager::DumpToFile(Function *f, const char *fileName)
 
 extern "C"
 {
+    bool g_DllActive = true;
+
     //////////////////////////////////////////////////////////////////////////
     /// @brief Create JIT context.
     /// @param simdWidth - SIMD width to be used in generated program.
@@ -364,6 +366,9 @@ extern "C"
     /// @brief Destroy JIT context.
     void JITCALL JitDestroyContext(HANDLE hJitContext)
     {
-        delete reinterpret_cast<JitManager*>(hJitContext);
+        if (g_DllActive)
+        {
+            delete reinterpret_cast<JitManager*>(hJitContext);
+        }
     }
 }