From: Bruno Randolf Date: Fri, 17 Sep 2010 02:36:40 +0000 (+0900) Subject: ath5k: Fix queue debug file X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cfddc11c429a655e418ffc111372cc69dee6a1a5;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git ath5k: Fix queue debug file Take txq lock in debug file and fix reporting of used buffers. Signed-off-by: Bruno Randolf Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c index 1b7c6d7fde93..b2c610ba8b7e 100644 --- a/drivers/net/wireless/ath/ath5k/debug.c +++ b/drivers/net/wireless/ath/ath5k/debug.c @@ -763,7 +763,7 @@ static ssize_t read_file_queue(struct file *file, char __user *user_buf, struct ath5k_txq *txq; struct ath5k_buf *bf, *bf0; - int i, n = 0; + int i, n; len += snprintf(buf+len, sizeof(buf)-len, "available txbuffers: %d\n", sc->txbuf_len); @@ -777,9 +777,14 @@ static ssize_t read_file_queue(struct file *file, char __user *user_buf, if (!txq->setup) continue; + n = 0; + spin_lock_bh(&txq->lock); list_for_each_entry_safe(bf, bf0, &txq->q, list) n++; - len += snprintf(buf+len, sizeof(buf)-len, " len: %d\n", n); + spin_unlock_bh(&txq->lock); + + len += snprintf(buf+len, sizeof(buf)-len, + " len: %d bufs: %d\n", txq->txq_len, n); } if (len > sizeof(buf))