diff --git a/src/utils/dma_alloc.cpp b/src/utils/dma_alloc.cpp
index 50cf645..7326ff6 100644
--- a/src/utils/dma_alloc.cpp
+++ b/src/utils/dma_alloc.cpp
@@ -175,18 +175,37 @@ DmaBufferPtr DmaAlloc(size_t alloc_size) {
         nullptr
     };
 
-    int heap_fd = -1;
+    static bool first_success = true;
+
+    int dma_fd = -1;
     const char* used_heap = nullptr;
+    int last_errno = 0;
     for (int i = 0; heap_paths[i] != nullptr; ++i) {
-        heap_fd = open(heap_paths[i], O_RDWR | O_CLOEXEC);
-        if (heap_fd >= 0) {
+        int heap_fd = open(heap_paths[i], O_RDWR | O_CLOEXEC);
+        if (heap_fd < 0) {
+            last_errno = errno;
+            continue;
+        }
+
+        dma_heap_allocation_data alloc_data{};
+        alloc_data.len = alloc_size;
+        alloc_data.fd_flags = O_RDWR | O_CLOEXEC;
+        alloc_data.heap_flags = 0;
+
+        if (ioctl(heap_fd, DMA_HEAP_IOCTL_ALLOC, &alloc_data) == 0) {
+            dma_fd = static_cast<int>(alloc_data.fd);
             used_heap = heap_paths[i];
+            close(heap_fd);
             break;
         }
+
+        last_errno = errno;
+        close(heap_fd);
+        continue;
     }
 
-    if (heap_fd < 0) {
-        std::cerr << "[DmaAlloc] failed to open dma_heap device: " << strerror(errno) << "\n";
+    if (dma_fd < 0) {
+        std::cerr << "[DmaAlloc] DMA_HEAP_IOCTL_ALLOC failed on all heaps: " << strerror(last_errno) << "\n";
         std::cerr << "[DmaAlloc] tried: ";
         for (int i = 0; heap_paths[i] != nullptr; ++i) {
             std::cerr << heap_paths[i] << " ";
@@ -195,27 +214,11 @@ DmaBufferPtr DmaAlloc(size_t alloc_size) {
         return nullptr;
     }
 
-    static bool first_alloc = true;
-    if (first_alloc) {
+    if (first_success) {
         std::cout << "[DmaAlloc] using heap: " << used_heap << "\n";
-        first_alloc = false;
+        first_success = false;
     }
 
-    dma_heap_allocation_data alloc_data{};
-    alloc_data.len = alloc_size;
-    alloc_data.fd_flags = O_RDWR | O_CLOEXEC;
-    alloc_data.heap_flags = 0;
-
-    if (ioctl(heap_fd, DMA_HEAP_IOCTL_ALLOC, &alloc_data) < 0) {
-        std::cerr << "[DmaAlloc] DMA_HEAP_IOCTL_ALLOC failed: " << strerror(errno) << "\n";
-        close(heap_fd);
-        return nullptr;
-    }
-
-    close(heap_fd);
-
-    int dma_fd = static_cast<int>(alloc_data.fd);
-
     void* ptr = mmap(nullptr, alloc_size, PROT_READ | PROT_WRITE, MAP_SHARED, dma_fd, 0);
     if (ptr == MAP_FAILED) {
         std::cerr << "[DmaAlloc] mmap failed: " << strerror(errno) << "\n";