diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index e4fd13a..44b3192 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -1575,21 +1575,14 @@ int brcmf_fws_hdrpull(struct brcmf_pub *drvr, int ifidx, s16 signal_len,
 	return 0;
 }
 
-static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
+static void brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 				   struct sk_buff *p)
 {
 	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(p);
 	struct brcmf_fws_mac_descriptor *entry = skcb->mac;
-	int rc = 0;
-	bool first_time;
-	int hslot = BRCMF_FWS_HANGER_MAXITEMS;
-	u8 free_ctr;
 	u8 flags;
 
-	first_time = skcb->state != BRCMF_FWS_SKBSTATE_SUPPRESSED;
-
 	brcmf_skb_if_flags_set_field(p, TRANSMIT, 1);
-	brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
 	brcmf_skb_htod_tag_set_field(p, GENERATION, entry->generation);
 	flags = BRCMF_FWS_HTOD_FLAG_PKTFROMHOST;
 	if (brcmf_skb_if_flags_get_field(p, REQUESTED)) {
@@ -1600,80 +1593,36 @@ static int brcmf_fws_precommit_skb(struct brcmf_fws_info *fws, int fifo,
 		flags |= BRCMF_FWS_HTOD_FLAG_PKT_REQUESTED;
 	}
 	brcmf_skb_htod_tag_set_field(p, FLAGS, flags);
-	if (first_time) {
-		/* obtaining free slot may fail, but that will be caught
-		 * by the hanger push. This assures the packet has a BDC
-		 * header upon return.
-		 */
-		hslot = brcmf_fws_hanger_get_free_slot(&fws->hanger);
-		free_ctr = entry->seq[fifo];
-		brcmf_skb_htod_tag_set_field(p, HSLOT, hslot);
-		brcmf_skb_htod_tag_set_field(p, FREERUN, free_ctr);
-		rc = brcmf_fws_hanger_pushpkt(&fws->hanger, p, hslot);
-		if (rc)
-			brcmf_err("hanger push failed: rc=%d\n", rc);
-	}
-
-	if (rc == 0)
-		brcmf_fws_hdrpush(fws, p);
-
-	return rc;
+	brcmf_fws_hdrpush(fws, p);
 }
 
-static void
-brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
-		       struct sk_buff *skb, int fifo)
+static void brcmf_fws_rollback_toq(struct brcmf_fws_info *fws,
+				   struct sk_buff *skb, int fifo)
 {
-	/*
-	put the packet back to the head of queue
-
-	- suppressed packet goes back to suppress sub-queue
-	- pull out the header, if new or delayed packet
-
-	Note: hslot is used only when header removal is done.
-	*/
 	struct brcmf_fws_mac_descriptor *entry;
-	enum brcmf_fws_skb_state state;
 	struct sk_buff *pktout;
+	int qidx, hslot;
 	int rc = 0;
-	int hslot;
 
-	state = brcmf_skbcb(skb)->state;
 	entry = brcmf_skbcb(skb)->mac;
-	hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
-
-	if (entry != NULL) {
-		if (state == BRCMF_FWS_SKBSTATE_SUPPRESSED) {
-			/* wl-header is saved for suppressed packets */
-			pktout = brcmu_pktq_penq_head(&entry->psq, 2 * fifo + 1,
-						      skb);
-			if (pktout == NULL) {
-				brcmf_err("suppress queue full\n");
-				rc = -ENOSPC;
-			}
-		} else {
-			/* delay-q packets are going to delay-q */
-			pktout = brcmu_pktq_penq_head(&entry->psq,
-						      2 * fifo, skb);
-			if (pktout == NULL) {
-				brcmf_err("delay queue full\n");
-				rc = -ENOSPC;
-			}
-
-			/* free the hanger slot */
-			brcmf_fws_hanger_poppkt(&fws->hanger, hslot, &pktout,
-						true);
-
-			/* decrement sequence count */
-			entry->seq[fifo]--;
+	if (entry->occupied) {
+		qidx = 2 * fifo;
+		if (brcmf_skbcb(skb)->state == BRCMF_FWS_SKBSTATE_SUPPRESSED)
+			qidx++;
+
+		pktout = brcmu_pktq_penq_head(&entry->psq, qidx, skb);
+		if (pktout == NULL) {
+			brcmf_err("%s queue %d full\n", entry->name, qidx);
+			rc = -ENOSPC;
 		}
 	} else {
-		brcmf_err("no mac entry linked\n");
+		brcmf_err("%s entry removed\n", entry->name);
 		rc = -ENOENT;
 	}
 
 	if (rc) {
 		fws->stats.rollback_failed++;
+		hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
 		brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_HOST_TOSSED,
 				      hslot, 0);
 	} else {
@@ -1720,15 +1669,10 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 	if (IS_ERR(entry))
 		return PTR_ERR(entry);
 
-	rc = brcmf_fws_precommit_skb(fws, fifo, skb);
-	if (rc < 0) {
-		fws->stats.generic_error++;
-		goto rollback;
-	}
-
-	brcmf_dbg(DATA, "%s flags %X htod %X\n", entry->name, skcb->if_flags,
-		  skcb->htod);
+	brcmf_fws_precommit_skb(fws, fifo, skb);
 	rc = brcmf_bus_txdata(bus, skb);
+	brcmf_dbg(DATA, "%s flags %X htod %X bus_tx %d\n", entry->name,
+		  skcb->if_flags, skcb->htod, rc);
 	if (rc < 0) {
 		brcmf_proto_hdrpull(fws->drvr, false, &ifidx, skb);
 		goto rollback;
@@ -1737,7 +1681,6 @@ static int brcmf_fws_commit_skb(struct brcmf_fws_info *fws, int fifo,
 	entry->transit_count++;
 	if (entry->suppressed)
 		entry->suppr_transit_count++;
-	entry->seq[fifo]++;
 	fws->stats.pkt2bus++;
 	fws->stats.send_pkts[fifo]++;
 	if (brcmf_skb_if_flags_get_field(skb, REQUESTED))
@@ -1750,6 +1693,24 @@ rollback:
 	return rc;
 }
 
+static int brcmf_fws_assign_htod(struct brcmf_fws_info *fws, struct sk_buff *p,
+				  int fifo)
+{
+	struct brcmf_skbuff_cb *skcb = brcmf_skbcb(p);
+	int rc, hslot;
+
+	hslot = brcmf_fws_hanger_get_free_slot(&fws->hanger);
+	brcmf_skb_htod_tag_set_field(p, HSLOT, hslot);
+	brcmf_skb_htod_tag_set_field(p, FREERUN, skcb->mac->seq[fifo]);
+	brcmf_skb_htod_tag_set_field(p, FIFO, fifo);
+	rc = brcmf_fws_hanger_pushpkt(&fws->hanger, p, hslot);
+	if (!rc)
+		skcb->mac->seq[fifo]++;
+	else
+		fws->stats.generic_error++;
+	return rc;
+}
+
 int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 {
 	struct brcmf_pub *drvr = ifp->drvr;
@@ -1778,22 +1739,27 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
 
 	/* set control buffer information */
 	skcb->if_flags = 0;
-	skcb->mac = brcmf_fws_macdesc_find(fws, ifp, eh->h_dest);
 	skcb->state = BRCMF_FWS_SKBSTATE_NEW;
 	brcmf_skb_if_flags_set_field(skb, INDEX, ifp->ifidx);
 	if (!multicast)
 		fifo = brcmf_fws_prio2fifo[skb->priority];
 
-	brcmf_dbg(DATA, "%s mac %pM multi %d fifo %d\n", skcb->mac->name,
-		  eh->h_dest, multicast, fifo);
-
 	brcmf_fws_lock(drvr, flags);
-	brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb);
 	if (fifo != BRCMF_FWS_FIFO_AC_BE && fifo < BRCMF_FWS_FIFO_BCMC)
 		fws->borrow_defer_timestamp = jiffies +
 					      BRCMF_FWS_BORROW_DEFER_PERIOD;
+
+	skcb->mac = brcmf_fws_macdesc_find(fws, ifp, eh->h_dest);
+	brcmf_dbg(DATA, "%s mac %pM multi %d fifo %d\n", skcb->mac->name,
+		  eh->h_dest, multicast, fifo);
+	if (!brcmf_fws_assign_htod(fws, skb, fifo)) {
+		brcmf_fws_enq(fws, BRCMF_FWS_SKBSTATE_DELAYED, fifo, skb);
+		brcmf_fws_schedule_deq(fws);
+	} else {
+		brcmf_err("drop skb: no hanger slot\n");
+		brcmu_pkt_buf_free_skb(skb);
+	}
 	brcmf_fws_unlock(drvr, flags);
-	brcmf_fws_schedule_deq(fws);
 	return 0;
 }
 
