diff --git a/lib/checknullpointer.cpp b/lib/checknullpointer.cpp
index 33c0e4032..9ae24bd24 100644
--- a/lib/checknullpointer.cpp
+++ b/lib/checknullpointer.cpp
@@ -837,8 +837,13 @@ void CheckNullPointer::nullPointerByDeRefAndChec()
                     const Token *tok2 = tok1->previous();
                     if (tok2 && (tok2->isArithmeticalOp() || tok2->str() == "(")) {
                         while (tok2 && !Token::Match(tok2, "[;{}?:]")) {
-                            if (tok2->str() == ")")
+                            if (tok2->str() == ")") {
                                 tok2 = tok2->link();
+                                if (Token::Match(tok2, "( %varid% =", varid)) {
+                                    tok2 = tok2->next();
+                                    break;
+                                }
+                            }
                             // guarded by &&
                             if (tok2->varId() == varid && tok2->next()->str() == "&&")
                                 break;
diff --git a/test/testnullpointer.cpp b/test/testnullpointer.cpp
index 601b9fae3..fb34173ad 100644
--- a/test/testnullpointer.cpp
+++ b/test/testnullpointer.cpp
@@ -743,6 +743,13 @@ private:
               "    $if(!p){}\n"
               "}");
         ASSERT_EQUALS("", errout.str());
+
+        check("void f() {\n" // #3914 - false positive
+              "    int *p;\n"
+              "    ((p=ret()) && (x=*p));\n"
+              "    if (p);\n"
+              "}");
+        ASSERT_EQUALS("", errout.str());
     }
 
     void nullpointer5() {