From: Sven Eckelmann Date: Fri, 15 Jul 2016 15:39:24 +0000 (+0200) Subject: batman-adv: Place kref_get for bla_claim near use X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=7282ac396ea617a0a4f8f89389f84690f8431d7d;p=deliverable%2Flinux.git batman-adv: Place kref_get for bla_claim near use It is hard to understand why the refcnt is increased when it isn't done near the actual place the new reference is used. So using kref_get right before the place which requires the reference and in the same function helps to avoid accidental problems caused by incorrect reference counting. Signed-off-by: Sven Eckelmann Signed-off-by: Marek Lindner Signed-off-by: Simon Wunderlich --- diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c index 35ed1d32bab5..b0517a0bc8e7 100644 --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -718,12 +718,13 @@ static void batadv_bla_add_claim(struct batadv_priv *bat_priv, claim->lasttime = jiffies; kref_get(&backbone_gw->refcount); claim->backbone_gw = backbone_gw; - kref_init(&claim->refcount); - kref_get(&claim->refcount); + batadv_dbg(BATADV_DBG_BLA, bat_priv, "bla_add_claim(): adding new entry %pM, vid %d to hash ...\n", mac, BATADV_PRINT_VID(vid)); + + kref_get(&claim->refcount); hash_added = batadv_hash_add(bat_priv->bla.claim_hash, batadv_compare_claim, batadv_choose_claim, claim,