From: Anders Roxell <anders.roxell@linaro.org>
To: mareklindner@neomailbox.ch, sw@simonwunderlich.de, a@unstable.cc,
davem@davemloft.net
Cc: b.a.t.m.a.n@lists.open-mesh.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
Anders Roxell <anders.roxell@linaro.org>
Subject: [PATCH] batman-adv: fix warning in function batadv_v_elp_get_throughput
Date: Fri, 22 Feb 2019 16:25:54 +0100 [thread overview]
Message-ID: <20190222152554.30006-1-anders.roxell@linaro.org> (raw)
When CONFIG_CFG80211 isn't enabled the compiler correcly warns about
'sinfo.pertid' may be unused. It can also happen for other error
conditions that it not warn about.
net/batman-adv/bat_v_elp.c: In function ‘batadv_v_elp_get_throughput.isra.0’:
include/net/cfg80211.h:6370:13: warning: ‘sinfo.pertid’ may be used
uninitialized in this function [-Wmaybe-uninitialized]
kfree(sinfo->pertid);
~~~~~^~~~~~~~
Rework so that we only release '&sinfo' if cfg80211_get_station returns
zero.
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
---
net/batman-adv/bat_v_elp.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
index a9b7919c9de5..d5df0114f08a 100644
--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c
@@ -104,8 +104,10 @@ static u32 batadv_v_elp_get_throughput(struct batadv_hardif_neigh_node *neigh)
ret = cfg80211_get_station(real_netdev, neigh->addr, &sinfo);
- /* free the TID stats immediately */
- cfg80211_sinfo_release_content(&sinfo);
+ if (!ret) {
+ /* free the TID stats immediately */
+ cfg80211_sinfo_release_content(&sinfo);
+ }
dev_put(real_netdev);
if (ret == -ENOENT) {
--
2.19.2
reply other threads:[~2019-02-22 15:26 UTC|newest]
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