linux-kernel - [PATCH AUTOSEL for 3.18 053/102] wl1251: check return from call to wl1251_acx_arp_ip

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Date:   Mon, 19 Mar 2018 16:12:36 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
CC:     Colin Ian King <colin.king@...onical.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL for 3.18 053/102] wl1251: check return from call to
 wl1251_acx_arp_ip_filter

From: Colin Ian King <colin.king@...onical.com>

[ Upstream commit ac1181c60822292176ab96912208ec9f9819faf8 ]

Currently the less than zero error check on ret is incorrect
as it is checking a far earlier ret assignment rather than the
return from the call to wl1251_acx_arp_ip_filter. Fix this by
adding in the missing assginment.

Detected by CoverityScan, CID#1164835 ("Logically dead code")

Fixes: 204cc5c44fb6 ("wl1251: implement hardware ARP filtering")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 drivers/net/wireless/ti/wl1251/main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ti/wl1251/main.c b/drivers/net/wireless/ti/wl1251/main.c
index 15527d8aa015..8720b8ae991c 100644
--- a/drivers/net/wireless/ti/wl1251/main.c
+++ b/drivers/net/wireless/ti/wl1251/main.c
@@ -1200,8 +1200,7 @@ static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw,
 		WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS);
 
 		enable = bss_conf->arp_addr_cnt == 1 && bss_conf->assoc;
-		wl1251_acx_arp_ip_filter(wl, enable, addr);
-
+		ret = wl1251_acx_arp_ip_filter(wl, enable, addr);
 		if (ret < 0)
 			goto out_sleep;
 	}
-- 
2.14.1