From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 20 Nov 2010 02:08:46 +0000 (+0100)
Subject: ath9k: fix recursive locking in the tx flush path
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e1566d1f322b41b1ac3acf33407a0cfe2a311b75;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

ath9k: fix recursive locking in the tx flush path

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Tested-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index c63e283ff97f..495432ec85a9 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -163,6 +163,7 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
 		bf = list_first_entry(&tid->buf_q, struct ath_buf, list);
 		list_move_tail(&bf->list, &bf_head);
 
+		spin_unlock_bh(&txq->axq_lock);
 		fi = get_frame_info(bf->bf_mpdu);
 		if (fi->retries) {
 			ath_tx_update_baw(sc, tid, fi->seqno);
@@ -170,6 +171,7 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
 		} else {
 			ath_tx_send_normal(sc, txq, tid, &bf_head);
 		}
+		spin_lock_bh(&txq->axq_lock);
 	}
 
 	spin_unlock_bh(&txq->axq_lock);