diff mbox series

[v2,08/12] wil6210: fix invalid sta statistics update

Message ID 1548689786-23288-9-git-send-email-merez@codeaurora.org (mailing list archive)
State Changes Requested
Delegated to: Kalle Valo
Headers show
Series wil6210 patches | expand

Commit Message

Maya Erez Jan. 28, 2019, 3:36 p.m. UTC 
From: Dedy Lansky <dlansky@codeaurora.org>

Upon status ring handling, in case there are both unicast and
multicast (cid == max) status messages to handle, wrong sta statistics
might get updated.
Fix this by setting stats to NULL upon invalid cid
(e.g. == max_assoc_sta).

Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
---
 drivers/net/wireless/ath/wil6210/txrx_edma.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c
index ae0d123..3277816 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.c
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c
@@ -1137,7 +1137,7 @@  int wil_tx_sring_handler(struct wil6210_priv *wil,
 	/* Total number of completed descriptors in all descriptor rings */
 	int desc_cnt = 0;
 	int cid;
-	struct wil_net_stats *stats = NULL;
+	struct wil_net_stats *stats;
 	struct wil_tx_enhanced_desc *_d;
 	unsigned int ring_id;
 	unsigned int num_descs;
@@ -1187,8 +1187,8 @@  int wil_tx_sring_handler(struct wil6210_priv *wil,
 		ndev = vif_to_ndev(vif);
 
 		cid = wil->ring2cid_tid[ring_id][0];
-		if (cid < wil->config.max_assoc_sta)
-			stats = &wil->sta[cid].stats;
+		stats = (cid < wil->config.max_assoc_sta ?
+			&wil->sta[cid].stats : NULL);
 
 		wil_dbg_txrx(wil,
 			     "tx_status: completed desc_ring (%d), num_descs (%d)\n",