dev/pci: Unmap memory on allocation failure

2026-11-02 21:53:06 +01:00
parent 54f279a9e6
commit fd50c97f1a
3 changed files with 24 additions and 4 deletions
@@ -224,8 +224,14 @@ errno_t pci_setup_msix(struct pci_device* dev, struct irq_line** out) {
        return ENOMEM;
    for (size_t i = 0; i < map_len; i += page_size) {
        status = pmap_map(&kernel_vma.pmap, vaddr + i, page_base + i, PTE_READ | PTE_WRITE, CACHE_MMIO);
-        if (status)
+        if (status) {
+            while (i) {
+                i -= page_size;
+                pmap_unmap(&kernel_vma.pmap, vaddr + i);
+            }
+            vm_free(vaddr, map_len);
            return status;
+        }
    }
    void* entry = (void*)(vaddr + page_offset);