diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/usb/hcd-xhci.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index 204ea69d3f..d75c085d94 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -811,8 +811,9 @@ static void xhci_er_reset(XHCIState *xhci, int v) { XHCIInterrupter *intr = &xhci->intr[v]; XHCIEvRingSeg seg; + dma_addr_t erstba = xhci_addr64(intr->erstba_low, intr->erstba_high); - if (intr->erstsz == 0) { + if (intr->erstsz == 0 || erstba == 0) { /* disabled */ intr->er_start = 0; intr->er_size = 0; @@ -824,7 +825,6 @@ static void xhci_er_reset(XHCIState *xhci, int v) xhci_die(xhci); return; } - dma_addr_t erstba = xhci_addr64(intr->erstba_low, intr->erstba_high); pci_dma_read(PCI_DEVICE(xhci), erstba, &seg, sizeof(seg)); le32_to_cpus(&seg.addr_low); le32_to_cpus(&seg.addr_high); |