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Message-ID: <36adaef5c982ba10444d6f837b0d5c55ac953bdf.camel@sipsolutions.net> Date: Wed, 13 Feb 2019 16:04:29 +0100 From: Johannes Berg <johannes@...solutions.net> To: Herbert Xu <herbert@...dor.apana.org.au>, David Miller <davem@...emloft.net>, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, j@...fi, tgraf@...g.ch Subject: Re: [PATCH 2/4] mac80211: Free mpath object when rhashtable insertion fails On Wed, 2019-02-13 at 22:39 +0800, Herbert Xu wrote: > + if (ret != -EEXIST) > return ERR_PTR(ret); Surely that should still be "if (ret && ret != -EEXIST)" otherwise you return for the success case too? or "else if"? I'd probably say we should combine all those ifs into something like this? if (ret == 0) { sdata->u.mesh.mesh_paths_generation++; return new_mpath; } else if (ret == -EEXIST) { kfree(new_mpath); return mpath; } else { kfree(new_mpath); return NULL; } Yes, that's a small change in behaviour as to when the generation counter is updated, but I'm pretty sure it really only needs updating when we inserted something, not if we found an old mpath. johannes
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