diff options
Diffstat (limited to 'hw/ide/ahci.c')
| -rw-r--r-- | hw/ide/ahci.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c index 7e87b1805e..3a95dadbd6 100644 --- a/hw/ide/ahci.c +++ b/hw/ide/ahci.c @@ -662,6 +662,10 @@ static bool ahci_map_fis_address(AHCIDevice *ad) static void ahci_unmap_fis_address(AHCIDevice *ad) { + if (ad->res_fis == NULL) { + DPRINTF(ad->port_no, "Attempt to unmap NULL FIS address\n"); + return; + } dma_memory_unmap(ad->hba->as, ad->res_fis, 256, DMA_DIRECTION_FROM_DEVICE, 256); ad->res_fis = NULL; @@ -678,6 +682,10 @@ static bool ahci_map_clb_address(AHCIDevice *ad) static void ahci_unmap_clb_address(AHCIDevice *ad) { + if (ad->lst == NULL) { + DPRINTF(ad->port_no, "Attempt to unmap NULL CLB address\n"); + return; + } dma_memory_unmap(ad->hba->as, ad->lst, 1024, DMA_DIRECTION_FROM_DEVICE, 1024); ad->lst = NULL; |