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-rw-r--r--hw/pci-host/pam.c2
-rw-r--r--hw/pci-host/q35.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/hw/pci-host/pam.c b/hw/pci-host/pam.c
index a496205783..454dd120db 100644
--- a/hw/pci-host/pam.c
+++ b/hw/pci-host/pam.c
@@ -62,7 +62,7 @@ void init_pam(DeviceState *dev, MemoryRegion *ram_memory,
 
 void pam_update(PAMMemoryRegion *pam, int idx, uint8_t val)
 {
-    assert(0 <= idx && idx <= 12);
+    assert(0 <= idx && idx < PAM_REGIONS_COUNT);
 
     memory_region_set_enabled(&pam->alias[pam->current], false);
     pam->current = (val >> ((!(idx & 1)) * 4)) & PAM_ATTR_MASK;
diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index b67cb9c29f..2eb729dff5 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -641,7 +641,7 @@ static void mch_realize(PCIDevice *d, Error **errp)
     init_pam(DEVICE(mch), mch->ram_memory, mch->system_memory,
              mch->pci_address_space, &mch->pam_regions[0],
              PAM_BIOS_BASE, PAM_BIOS_SIZE);
-    for (i = 0; i < 12; ++i) {
+    for (i = 0; i < ARRAY_SIZE(mch->pam_regions) - 1; ++i) {
         init_pam(DEVICE(mch), mch->ram_memory, mch->system_memory,
                  mch->pci_address_space, &mch->pam_regions[i+1],
                  PAM_EXPAN_BASE + i * PAM_EXPAN_SIZE, PAM_EXPAN_SIZE);