netdev - [PATCH] ath6kl: reduce WARN to dev

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Message-Id: <20191121104135.28705-1-oneukum@suse.com>
Date:   Thu, 21 Nov 2019 11:41:35 +0100
From:   Oliver Neukum <oneukum@...e.com>
To:     kvalo@...eaurora.org, davem@...emloft.net, netdev@...r.kernel.org
Cc:     Oliver Neukum <oneukum@...e.com>
Subject: [PATCH] ath6kl: reduce WARN to dev_dbg() in callback

The warn is triggered on a known race condition
that is correctly handled. Using WARN() hinders automated
testing. Reducing severity.

Reported-and-tested-by: syzbot+555908813b2ea35dae9a@...kaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@...e.com>
---
 drivers/net/wireless/ath/ath6kl/htc_pipe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath6kl/htc_pipe.c b/drivers/net/wireless/ath/ath6kl/htc_pipe.c
index c68848819a52..9b88d96bfe96 100644
--- a/drivers/net/wireless/ath/ath6kl/htc_pipe.c
+++ b/drivers/net/wireless/ath/ath6kl/htc_pipe.c
@@ -960,8 +960,8 @@ static int ath6kl_htc_pipe_rx_complete(struct ath6kl *ar, struct sk_buff *skb,
 	 * Thus the possibility of ar->htc_target being NULL
 	 * via ath6kl_recv_complete -> ath6kl_usb_io_comp_work.
 	 */
-	if (WARN_ON_ONCE(!target)) {
-		ath6kl_err("Target not yet initialized\n");
+	if (!target) {
+		ath6kl_dbg(ATH6KL_DBG_HTC, "Target not yet initialized\n");
 		status = -EINVAL;
 		goto free_skb;
 	}
-- 
2.16.4