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-rw-r--r--include/hw/ide/ahci.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/hw/ide/ahci.h b/include/hw/ide/ahci.h
index 8cd55b1333..604d3a0994 100644
--- a/include/hw/ide/ahci.h
+++ b/include/hw/ide/ahci.h
@@ -46,7 +46,7 @@ typedef struct AHCIState {
     MemoryRegion idp;       /* Index-Data Pair I/O port space */
     unsigned idp_offset;    /* Offset of index in I/O port space */
     uint32_t idp_index;     /* Current IDP index */
-    int32_t ports;
+    uint32_t ports;
     qemu_irq irq;
     AddressSpace *as;
 } AHCIState;