wifi: brcmfmac: Fix to add skb free for TIM update info when tx is completed

The skb will be allocated to send TIM update info in brcmf_fws_tim_update.
Currently the skb will be freed when tx is failed but it will not be freed
when tx is completed successfully. The fix is to free the skb when tx is
completed always.
Signed-off-by: Wataru Gohda <wataru.gohda@cypress.com>
Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220722115632.620681-6-alvin@pqrs.dk

drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcdc.c

@@ -368,8 +368,7 @@ brcmf_proto_bcdc_txcomplete(struct device *dev, struct sk_buff *txp,
 
 	/* await txstatus signal for firmware if active */
 	if (brcmf_fws_fc_active(bcdc->fws)) {
-		if (!success)
-			brcmf_fws_bustxfail(bcdc->fws, txp);
+		brcmf_fws_bustxcomplete(bcdc->fws, txp, success);
 	} else {
 		if (brcmf_proto_bcdc_hdrpull(bus_if->drvr, false, txp, &ifp))
 			brcmu_pkt_buf_free_skb(txp);

drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.c

@@ -2475,7 +2475,8 @@ bool brcmf_fws_fc_active(struct brcmf_fws_info *fws)
 	return fws->fcmode != BRCMF_FWS_FCMODE_NONE;
 }
 
-void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
+void brcmf_fws_bustxcomplete(struct brcmf_fws_info *fws, struct sk_buff *skb,
+			     bool success)
 {
 	u32 hslot;
 
@@ -2483,11 +2484,14 @@ void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb)
 		brcmu_pkt_buf_free_skb(skb);
 		return;
 	}
-	brcmf_fws_lock(fws);
-	hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
-	brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_HOST_TOSSED, hslot, 0, 0,
-			      1);
-	brcmf_fws_unlock(fws);
+
+	if (!success) {
+		brcmf_fws_lock(fws);
+		hslot = brcmf_skb_htod_tag_get_field(skb, HSLOT);
+		brcmf_fws_txs_process(fws, BRCMF_FWS_TXSTATUS_HOST_TOSSED, hslot,
+				      0, 0, 1);
+		brcmf_fws_unlock(fws);
+	}
 }
 
 void brcmf_fws_bus_blocked(struct brcmf_pub *drvr, bool flow_blocked)

drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwsignal.h

@@ -40,7 +40,8 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb);
 void brcmf_fws_reset_interface(struct brcmf_if *ifp);
 void brcmf_fws_add_interface(struct brcmf_if *ifp);
 void brcmf_fws_del_interface(struct brcmf_if *ifp);
-void brcmf_fws_bustxfail(struct brcmf_fws_info *fws, struct sk_buff *skb);
+void brcmf_fws_bustxcomplete(struct brcmf_fws_info *fws, struct sk_buff *skb,
+			     bool success);
 void brcmf_fws_bus_blocked(struct brcmf_pub *drvr, bool flow_blocked);
 void brcmf_fws_rxreorder(struct brcmf_if *ifp, struct sk_buff *skb);