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[v2,08/55] staging: wfx: detect race condition in WEP authentication

Message ID 20191217161318.31402-9-Jerome.Pouiller@silabs.com (mailing list archive)
State Not Applicable
Delegated to: Johannes Berg
Headers show
Series Improve wfx driver | expand

Commit Message

Jérôme Pouiller Dec. 17, 2019, 4:14 p.m. UTC 
From: Jérôme Pouiller <jerome.pouiller@silabs.com>

Current code has a special case to handle association with WEP. Before
to rework the tx data handling, let's try to detect any possible misuse
of this code.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
---
 drivers/staging/wfx/queue.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/staging/wfx/queue.c b/drivers/staging/wfx/queue.c
index c7ee90888f69..680fed31cefb 100644
--- a/drivers/staging/wfx/queue.c
+++ b/drivers/staging/wfx/queue.c
@@ -422,6 +422,7 @@  static bool hif_handle_tx_data(struct wfx_vif *wvif, struct sk_buff *skb,
 		break;
 	case do_wep:
 		wfx_tx_lock(wvif->wdev);
+		WARN_ON(wvif->wep_pending_skb);
 		wvif->wep_default_key_id = tx_priv->hw_key->keyidx;
 		wvif->wep_pending_skb = skb;
 		if (!schedule_work(&wvif->wep_key_work))