Minor fix -- renamed a variable

modules/gpu/include/opencv2/gpu/gpu.hpp

@@ -1854,8 +1854,8 @@ public:
         pyrLevel_[1].release();
         M_.release();
         bufM_.release();
-        polyCoefs_[0].release();
-        polyCoefs_[1].release();
+        R_[0].release();
+        R_[1].release();
         blurredFrame_[0].release();
         blurredFrame_[1].release();
         pyramid0_.clear();
@@ -1878,7 +1878,7 @@ private:
             GpuMat& M, GpuMat &bufM, int blockSize, bool updateMatrices, Stream streams[]);
 
     GpuMat frames_[2];
-    GpuMat pyrLevel_[2], M_, bufM_, polyCoefs_[2], blurredFrame_[2];
+    GpuMat pyrLevel_[2], M_, bufM_, R_[2], blurredFrame_[2];
     std::vector<GpuMat> pyramid0_, pyramid1_;
 };