linux-kernel - [PATCH] iwlegacy: Add missing check in il4965_commit

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Message-Id: <20210228122522.2513-1-dinghao.liu@zju.edu.cn>
Date:   Sun, 28 Feb 2021 20:25:22 +0800
From:   Dinghao Liu <dinghao.liu@....edu.cn>
To:     dinghao.liu@....edu.cn, kjlu@....edu
Cc:     Stanislaw Gruszka <stf_xl@...pl>,
        Kalle Valo <kvalo@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] iwlegacy: Add missing check in il4965_commit_rxon

There is one il_set_tx_power() call in this function without
return value check. Print error message and return error code
on failure just like the other il_set_tx_power() call.

Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>
---
 drivers/net/wireless/intel/iwlegacy/4965.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlegacy/4965.c b/drivers/net/wireless/intel/iwlegacy/4965.c
index 9fa556486511..3235b8be1894 100644
--- a/drivers/net/wireless/intel/iwlegacy/4965.c
+++ b/drivers/net/wireless/intel/iwlegacy/4965.c
@@ -1361,7 +1361,11 @@ il4965_commit_rxon(struct il_priv *il)
 		 * We do not commit tx power settings while channel changing,
 		 * do it now if tx power changed.
 		 */
-		il_set_tx_power(il, il->tx_power_next, false);
+		ret = il_set_tx_power(il, il->tx_power_next, false);
+		if (ret) {
+			IL_ERR("Error sending TX power (%d)\n", ret);
+			return ret;
+		}
 		return 0;
 	}
 
-- 
2.17.1