diff --git a/csync/src/csync_exclude.c b/csync/src/csync_exclude.c
index 25cd060e0..299ae8bc5 100644
--- a/csync/src/csync_exclude.c
+++ b/csync/src/csync_exclude.c
@@ -208,7 +208,10 @@ CSYNC_EXCLUDE_TYPE csync_excluded(CSYNC *ctx, const char *path, int filetype) {
   }
 
   if (getenv("CSYNC_CONFLICT_FILE_USERNAME")) {
-      asprintf(&conflict, "*_conflict_%s-*", getenv("CSYNC_CONFLICT_FILE_USERNAME"));
+      rc = asprintf(&conflict, "*_conflict_%s-*", getenv("CSYNC_CONFLICT_FILE_USERNAME"));
+      if (rc < 0) {
+          goto out;
+      }
       rc = csync_fnmatch(conflict, path, 0);
       if (rc == 0) {
           match = CSYNC_FILE_SILENTLY_EXCLUDED;
diff --git a/csync/src/csync_util.c b/csync/src/csync_util.c
index ff18c3e58..c73538ac2 100644
--- a/csync/src/csync_util.c
+++ b/csync/src/csync_util.c
@@ -140,7 +140,9 @@ bool csync_file_locked_or_open( const char *dir, const char *fname) {
     if (!csync_file_locked_or_open_ext) {
         return false;
     }
-    asprintf(&tmp_uri, "%s/%s", dir, fname);
+    if (asprintf(&tmp_uri, "%s/%s", dir, fname) < 0) {
+        return -1;
+    }
     CSYNC_LOG(CSYNC_LOG_PRIORITY_DEBUG, "csync_file_locked_or_open %s", tmp_uri);
     ret = csync_file_locked_or_open_ext(tmp_uri);
     SAFE_FREE(tmp_uri);
diff --git a/src/mirall/folder.cpp b/src/mirall/folder.cpp
index 7e78fdeb7..0b5948521 100644
--- a/src/mirall/folder.cpp
+++ b/src/mirall/folder.cpp
@@ -711,7 +711,7 @@ void Folder::slotJobCompleted(const SyncFileItem &item)
 }
 
 
-void Folder::slotAboutToRemoveAllFiles(SyncFileItem::Direction direction, bool *cancel)
+void Folder::slotAboutToRemoveAllFiles(SyncFileItem::Direction, bool *cancel)
 {
     QString msg =
         tr("This sync would remove all the files in the sync folder '%1'.\n"
diff --git a/src/mirall/utility.cpp b/src/mirall/utility.cpp
index 9b47c8920..09f9c7544 100644
--- a/src/mirall/utility.cpp
+++ b/src/mirall/utility.cpp
@@ -367,6 +367,7 @@ void Utility::winShellChangeNotify( const QString& path )
     SHChangeNotify(SHCNE_UPDATEITEM, SHCNF_PATH | SHCNF_FLUSHNOWAIT,
                    reinterpret_cast<const wchar_t *>(QDir::toNativeSeparators(path).utf16()), NULL );
 #else
+    Q_UNUSED(path);
     qDebug() << Q_FUNC_INFO << " is not implemented on non Windows systems.";
 #endif
 }