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diff --git a/sys/compat/linuxkpi/common/src/linux_80211.c b/sys/compat/linuxkpi/common/src/linux_80211.c
--- a/sys/compat/linuxkpi/common/src/linux_80211.c
+++ b/sys/compat/linuxkpi/common/src/linux_80211.c
@@ -6074,8 +6074,12 @@
if (!withoutpkts && ltxq_empty)
goto out;
- /* Make sure we do not double-schedule. */
- if (ltxq->txq_entry.tqe_next != NULL)
+ /*
+ * Make sure we do not double-schedule. We do this by checking tqe_prev,
+ * the previous entry in our tailq. tqe_prev is always valid if this entry
+ * is queued, tqe_next may be NULL if this is the only element in the list.
+ */
+ if (ltxq->txq_entry.tqe_prev != NULL)
goto out;
lhw = HW_TO_LHW(hw);

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