diff --git a/modules/gpu/src/initialization.cpp b/modules/gpu/src/initialization.cpp
index d754c87364..514292350f 100644
--- a/modules/gpu/src/initialization.cpp
+++ b/modules/gpu/src/initialization.cpp
@@ -145,16 +145,17 @@ namespace
     template <typename Comparer>
     bool compare(const std::string& str, int x, Comparer cmp)
     {
-        std::stringstream stream(str);
+        if (str.find_first_not_of(" ") == string::npos)
+            return false;
 
+        std::stringstream stream(str);
         int val;
-        stream >> val;
 
-        while (!stream.eof() && !stream.fail())
+        while (!stream.eof())
         {
+            stream >> val;
             if (cmp(val, x))
                 return true;
-            stream >> val;
         }
 
         return false;
diff --git a/tests/gpu/src/arithm.cpp b/tests/gpu/src/arithm.cpp
index 7dc7ba3a4e..5b4230c15c 100644
--- a/tests/gpu/src/arithm.cpp
+++ b/tests/gpu/src/arithm.cpp
@@ -918,7 +918,7 @@ struct CV_GpuCountNonZeroTest: CvTest
 
         if (n != n_gold)
         {
-            ts->printf(CvTS::CONSOLE, "%d %d %d %d %d\n", n, n_gold, depth, cols, rows);
+            ts->printf(CvTS::LOG, "%d %d %d %d %d\n", n, n_gold, depth, cols, rows);
             n_gold = cv::countNonZero(src);
         }