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-rw-r--r--sys/dev/usb/ohci.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/dev/usb/ohci.c b/sys/dev/usb/ohci.c
index 6e11dfe..2bc4746 100644
--- a/sys/dev/usb/ohci.c
+++ b/sys/dev/usb/ohci.c
@@ -1555,6 +1555,10 @@ ohci_hash_find_td(sc, a)
int h = HASH(a);
ohci_soft_td_t *std;
+ KASSERT(a&LE(TAILMASK) == 0, ("%s: 0x%b has lower bits set\n",
+ USBDEVNAME(sc->sc_bus.bdev),
+ (int) a, "\20\1HALT\2TOGGLE"));
+
for (std = LIST_FIRST(&sc->sc_hash_tds[h]);
std != NULL;
std = LIST_NEXT(std, hnext))
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