diff --git a/sys/contrib/ena-com/ena_com.c b/sys/contrib/ena-com/ena_com.c
--- a/sys/contrib/ena-com/ena_com.c
+++ b/sys/contrib/ena-com/ena_com.c
@@ -1878,13 +1878,16 @@
 void ena_com_phc_destroy(struct ena_com_dev *ena_dev)
 {
 	struct ena_com_phc_info *phc = &ena_dev->phc;
-
-	phc->active = false;
+	unsigned long flags = 0;
 
 	/* In case PHC is not supported by the device, silently exiting */
 	if (!phc->virt_addr)
 		return;
 
+	ENA_SPINLOCK_LOCK(phc->lock, flags);
+	phc->active = false;
+	ENA_SPINLOCK_UNLOCK(phc->lock, flags);
+
 	ENA_MEM_FREE_COHERENT(ena_dev->dmadev,
 			      sizeof(*phc->virt_addr),
 			      phc->virt_addr,