diff --git a/dlls/kernel32/tests/comm.c b/dlls/kernel32/tests/comm.c
index b08174f3520..895a9ab7949 100644
--- a/dlls/kernel32/tests/comm.c
+++ b/dlls/kernel32/tests/comm.c
@@ -1115,9 +1115,8 @@ static void  test_WaitRx(HANDLE hcom)
     ZeroMemory( &overlapped, sizeof(overlapped));
     overlapped.hEvent = hComPortEvent;
 
-    ok((hComWriteEvent =  CreateEvent( NULL, TRUE, FALSE, NULL )) !=0,
-       "CreateEvent res %d\n",
-       GetLastError());
+    hComWriteEvent = CreateEvent( NULL, TRUE, FALSE, NULL );
+    ok(hComWriteEvent != NULL, "CreateEvent res %d\n", GetLastError());
     ZeroMemory( &overlapped_w, sizeof(overlapped_w));
     overlapped_w.hEvent = hComWriteEvent;
 
diff --git a/dlls/kernel32/tests/file.c b/dlls/kernel32/tests/file.c
index df2ab3738c5..3ed3f66e6c7 100644
--- a/dlls/kernel32/tests/file.c
+++ b/dlls/kernel32/tests/file.c
@@ -2393,7 +2393,8 @@ static void test_read_write(void)
     user_apc_ran = FALSE;
     if (pQueueUserAPC) {
         trace("Queueing an user APC\n"); /* verify the file is non alerable */
-        ok(pQueueUserAPC(&user_apc, GetCurrentThread(), 0), "QueueUserAPC failed: %d\n", GetLastError());
+        ret = pQueueUserAPC(&user_apc, GetCurrentThread(), 0);
+        ok(ret, "QueueUserAPC failed: %d\n", GetLastError());
     }
 
     SetLastError(12345678);
diff --git a/dlls/kernel32/tests/pipe.c b/dlls/kernel32/tests/pipe.c
index 4b3566a1f5c..4fc673967b3 100644
--- a/dlls/kernel32/tests/pipe.c
+++ b/dlls/kernel32/tests/pipe.c
@@ -480,7 +480,8 @@ static DWORD CALLBACK serverThreadMain2(LPVOID arg)
         user_apc_ran = FALSE;
         if (i == 0 && pQueueUserAPC) {
             trace("Queueing an user APC\n"); /* verify the pipe is non alerable */
-            ok(pQueueUserAPC(&user_apc, GetCurrentThread(), 0), "QueueUserAPC failed: %d\n", GetLastError());
+            success = pQueueUserAPC(&user_apc, GetCurrentThread(), 0);
+            ok(success, "QueueUserAPC failed: %d\n", GetLastError());
         }
 
         /* Wait for client to connect */
diff --git a/dlls/kernel32/tests/profile.c b/dlls/kernel32/tests/profile.c
index 07b351cf7d8..44a7927541c 100644
--- a/dlls/kernel32/tests/profile.c
+++ b/dlls/kernel32/tests/profile.c
@@ -448,8 +448,8 @@ static void test_profile_delete_on_close(void)
 
     h = CreateFile(testfile, GENERIC_WRITE, FILE_SHARE_READ, NULL,
                     CREATE_ALWAYS, FILE_FLAG_DELETE_ON_CLOSE, NULL);
-    ok( WriteFile( h, contents, sizeof contents - 1, &size, NULL ),
-                    "Cannot write test file: %x\n", GetLastError() );
+    res = WriteFile( h, contents, sizeof contents - 1, &size, NULL );
+    ok( res, "Cannot write test file: %x\n", GetLastError() );
     ok( size == sizeof contents - 1, "Test file: partial write\n");
 
     SetLastError(0xdeadbeef);
@@ -472,8 +472,8 @@ static void test_profile_refresh(void)
 
     h = CreateFile(testfile, GENERIC_WRITE, FILE_SHARE_READ, NULL,
                     CREATE_ALWAYS, FILE_FLAG_DELETE_ON_CLOSE, NULL);
-    ok( WriteFile( h, contents1, sizeof contents1 - 1, &size, NULL ),
-                    "Cannot write test file: %x\n", GetLastError() );
+    res = WriteFile( h, contents1, sizeof contents1 - 1, &size, NULL );
+    ok( res, "Cannot write test file: %x\n", GetLastError() );
     ok( size == sizeof contents1 - 1, "Test file: partial write\n");
 
     SetLastError(0xdeadbeef);
@@ -488,8 +488,8 @@ static void test_profile_refresh(void)
 
     h = CreateFile(testfile, GENERIC_WRITE, FILE_SHARE_READ, NULL,
                     CREATE_ALWAYS, FILE_FLAG_DELETE_ON_CLOSE, NULL);
-    ok( WriteFile( h, contents2, sizeof contents2 - 1, &size, NULL ),
-                    "Cannot write test file: %x\n", GetLastError() );
+    res = WriteFile( h, contents2, sizeof contents2 - 1, &size, NULL );
+    ok( res, "Cannot write test file: %x\n", GetLastError() );
     ok( size == sizeof contents2 - 1, "Test file: partial write\n");
 
     SetLastError(0xdeadbeef);
diff --git a/dlls/kernel32/tests/virtual.c b/dlls/kernel32/tests/virtual.c
index cd5417c6fcd..a2a881f43db 100644
--- a/dlls/kernel32/tests/virtual.c
+++ b/dlls/kernel32/tests/virtual.c
@@ -598,12 +598,14 @@ static void test_MapViewOfFile(void)
     ptr = MapViewOfFile( mapping, FILE_MAP_WRITE, 0, 0, 0 );
     if (!ptr)
     {
+        SIZE_T size;
         ok( GetLastError() == ERROR_ACCESS_DENIED, "Wrong error %d\n", GetLastError() );
         SetLastError(0xdeadbeef);
         ptr = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
         ok( ptr != NULL, "MapViewOfFile FILE_MAP_READ error %u\n", GetLastError() );
         SetLastError(0xdeadbeef);
-        ok( VirtualQuery( ptr, &info, sizeof(info) ) == sizeof(info),
+        size = VirtualQuery( ptr, &info, sizeof(info) );
+        ok( size == sizeof(info),
             "VirtualQuery error %u\n", GetLastError() );
         ok( info.BaseAddress == ptr, "%p != %p\n", info.BaseAddress, ptr );
         ok( info.AllocationBase == ptr, "%p != %p\n", info.AllocationBase, ptr );
@@ -623,12 +625,14 @@ static void test_MapViewOfFile(void)
     ptr = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
     if (!ptr)
     {
+        SIZE_T size;
         ok( GetLastError() == ERROR_ACCESS_DENIED, "Wrong error %d\n", GetLastError() );
         SetLastError(0xdeadbeef);
         ptr = MapViewOfFile( mapping, FILE_MAP_WRITE, 0, 0, 0 );
         ok( ptr != NULL, "MapViewOfFile FILE_MAP_WRITE error %u\n", GetLastError() );
         SetLastError(0xdeadbeef);
-        ok( VirtualQuery( ptr, &info, sizeof(info) ) == sizeof(info),
+        size = VirtualQuery( ptr, &info, sizeof(info) );
+        ok( size == sizeof(info),
             "VirtualQuery error %u\n", GetLastError() );
         ok( info.BaseAddress == ptr, "%p != %p\n", info.BaseAddress, ptr );
         ok( info.AllocationBase == ptr, "%p != %p\n", info.AllocationBase, ptr );