diff --git a/Disk.cpp b/Disk.cpp
index 04c43cf..51eeba8 100644
--- a/Disk.cpp
+++ b/Disk.cpp
@@ -223,6 +223,8 @@
 }
 
 status_t Disk::readPartitions() {
+    std::lock_guard<std::mutex> lock(mLock);
+
     int8_t maxMinors = getMaxMinors();
     if (maxMinors < 0) {
         return -ENOTSUP;
@@ -311,6 +313,8 @@
 }
 
 status_t Disk::partitionPublic() {
+    std::lock_guard<std::mutex> lock(mLock);
+
     // TODO: improve this code
     destroyAllVolumes();
     mJustPartitioned = true;
@@ -357,6 +361,8 @@
 }
 
 status_t Disk::partitionMixed(int8_t ratio) {
+    std::lock_guard<std::mutex> lock(mLock);
+
     int res;
 
     destroyAllVolumes();