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-rw-r--r--sys/dev/usb/xhci.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/usb/xhci.c b/sys/dev/usb/xhci.c
index 0f386cb..ad99f72 100644
--- a/sys/dev/usb/xhci.c
+++ b/sys/dev/usb/xhci.c
@@ -277,6 +277,8 @@ xhci_alloc_cmdring(struct xhci_hc *hc)
size = XHCI_TRB_SIZE * XHCI_CMDRING_LEN;
hc->cmdring = dynalloc_memalign(size, 0x1000);
+
+ memset(hc->cmdring, 0, size);
__assert(hc->cmdring != NULL);
return VIRT_TO_PHYS(hc->cmdring);
}