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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jsuz4-000729-5w; Tue, 07 Jul 2020 21:18:34 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jsuz2-00071B-7F for linux-mediatek@lists.infradead.org; Tue, 07 Jul 2020 21:18:33 +0000 Received: from localhost (unknown [151.48.133.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7485120674; Tue, 7 Jul 2020 21:18:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594156711; bh=XL0tUECTDEwrDwToDqVJYlqz0LbTPyF5pQwI+PIscnA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=MgVclfRlZvRYeBqsxUtdjp9u1Vr6d7uVSao1gFYbZrCmfSTVZncYwl3vBKuMdm4wk /y/1hRtvE2pyw/r7Yu9bMsAh2k7kljnZdXWkN/52t6rTPd4S4LVzxCbSYLkAS1Hg1Z fJIWqPn8CxbuhPjnB0PzihdHC3LRUpz0IIndo8+o= Date: Tue, 7 Jul 2020 23:18:25 +0200 From: Lorenzo Bianconi To: sean.wang@mediatek.com Subject: Re: [PATCH v2 1/3] mt76: mt7663u: fix memory leak in set key Message-ID: <20200707211825.GB388366@localhost.localdomain> References: <57b81f8efe7e767616a0d5957728756cbfdfa235.1594148548.git.sean.wang@mediatek.com> MIME-Version: 1.0 In-Reply-To: <57b81f8efe7e767616a0d5957728756cbfdfa235.1594148548.git.sean.wang@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200707_171832_330143_8CACD62B X-CRM114-Status: GOOD ( 14.76 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mediatek@lists.infradead.org, lorenzo.bianconi@redhat.com, ryder.lee@mediatek.com, linux-wireless@vger.kernel.org, nbd@nbd.name Content-Type: multipart/mixed; boundary="===============3389248365717413910==" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org --===============3389248365717413910== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="mojUlQ0s9EVzWg2t" Content-Disposition: inline --mojUlQ0s9EVzWg2t Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > From: Sean Wang >=20 > Fix memory leak in set key. >=20 > v1 -> v2: > - remove unneeded kfree >=20 > Fixes: eb99cc95c3b6 ("mt76: mt7615: introduce mt7663u support") > Signed-off-by: Sean Wang Acked-by: Lorenzo Bianconi > --- > .../net/wireless/mediatek/mt76/mt7615/usb.c | 21 ++++++++++++------- > 1 file changed, 14 insertions(+), 7 deletions(-) >=20 > diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb.c b/drivers/ne= t/wireless/mediatek/mt76/mt7615/usb.c > index 0ba28d37c414..f3c3ad3509c8 100644 > --- a/drivers/net/wireless/mediatek/mt76/mt7615/usb.c > +++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb.c > @@ -165,12 +165,16 @@ __mt7663u_mac_set_key(struct mt7615_dev *dev, > =20 > lockdep_assert_held(&dev->mt76.mutex); > =20 > - if (!sta) > - return -EINVAL; > + if (!sta) { > + err =3D -EINVAL; > + goto out; > + } > =20 > cipher =3D mt7615_mac_get_cipher(key->cipher); > - if (cipher =3D=3D MT_CIPHER_NONE) > - return -EOPNOTSUPP; > + if (cipher =3D=3D MT_CIPHER_NONE) { > + err =3D -EOPNOTSUPP; > + goto out; > + } > =20 > wcid =3D &wd->sta->wcid; > =20 > @@ -178,19 +182,22 @@ __mt7663u_mac_set_key(struct mt7615_dev *dev, > err =3D mt7615_mac_wtbl_update_key(dev, wcid, key->key, key->keylen, > cipher, key->cmd); > if (err < 0) > - return err; > + goto out; > =20 > err =3D mt7615_mac_wtbl_update_pk(dev, wcid, cipher, key->keyidx, > key->cmd); > if (err < 0) > - return err; > + goto out; > =20 > if (key->cmd =3D=3D SET_KEY) > wcid->cipher |=3D BIT(cipher); > else > wcid->cipher &=3D ~BIT(cipher); > =20 > - return 0; > +out: > + kfree(key->key); > + > + return err; > } > =20 > void mt7663u_wtbl_work(struct work_struct *work) > --=20 > 2.25.1 --mojUlQ0s9EVzWg2t Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTquNwa3Txd3rGGn7Y6cBh0uS2trAUCXwTmnwAKCRA6cBh0uS2t rLr8AQCULFrwZ7G32qjUjOLKsbnlci1fSkQNN4w1aSp3ARP41wD+P7qxShJrHRgo 8s5pPVZzF4QjWgGzu0Gm7RBUSw3z8w0= =Um2P -----END PGP SIGNATURE----- --mojUlQ0s9EVzWg2t-- --===============3389248365717413910== Content-Type: text/plain; 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