From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx4+s3yufv5vgp0Xg13RACKdpkRfr4NCptQmnOXzCZAZmyV4DRIj144KVm1LpxjBdz5eyCs3N ARC-Seal: i=1; a=rsa-sha256; t=1522346783; cv=none; d=google.com; s=arc-20160816; b=CP2eDOrEPX+GHRT3hR6Qcj/z9mT217UKYoCaRAubMYkINTM08U9sG7QnoAm+lCb7lz 92IMJVJA7HMUsNbM375ApIpC5OnlXopFWVIXRhOir4we0Frkg0pndrxBy7DAemvJstGj /TVVh38MU5ed1xUdoLU5SW3AcpwSqDWjGCZPJ0iWR/onLV2S2V+GUjG3OS6tDPe38/57 emFyPq5yJ0Jn+EJr6W9P5ug5UlW+ljoNlGrw136Ia9gzTDALEe+4VphP3Ci99Y7vt+jd fIPKFTdqzOaJZlk+it02lbQRCGfgrgRv/H/REbhZimHT4FImgrgwuzNWAju1YDjxLotS l3FQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=KSF+rHImCvrjIFC1Y7W0rXiqPrgR0iNudp8wIcvHsDA=; b=l5GsqIPNMTR5GmhGslFnJG2OvbS0wvtVMuEGu/F+iX+U6bfRADRZMpaMMWJW21slxM wuMIBweoL7obLPZX6eNWTXnvvDDb1Liaxbke21a3p9nUau0XQILKPUQ8XO7Hxskal0oV SiTFWDg/+6CifswSReAcuywBDDkicRzOwoDG9hXJtBNOP/JCKAeQBYF5sIznJGdPz4OU wZ81T2Z0pOKdCgpBgVdk1SpS2jmx3XVujDrukBcE+jz3uucN9HknMlo92ZOG6SHjdOds +0Kp8I4Um1grG0Vg+X+UNOKCuvn9OIPn8LS/DenarSVQ6tSewhKFi3Iso/qlLBelkpbh DGrA== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christophe JAILLET , "David S. Miller" Subject: [PATCH 4.9 13/28] net: ethernet: arc: Fix a potential memory leak if an optional regulator is deferred Date: Thu, 29 Mar 2018 20:00:32 +0200 Message-Id: <20180329175735.056901751@linuxfoundation.org> X-Mailer: git-send-email 2.16.3 In-Reply-To: <20180329175733.447823703@linuxfoundation.org> References: <20180329175733.447823703@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1596296100956392169?= X-GMAIL-MSGID: =?utf-8?q?1596296301054281865?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Christophe JAILLET [ Upstream commit 00777fac28ba3e126b9e63e789a613e8bd2cab25 ] If the optional regulator is deferred, we must release some resources. They will be re-allocated when the probe function will be called again. Fixes: 6eacf31139bf ("ethernet: arc: Add support for Rockchip SoC layer device tree bindings") Signed-off-by: Christophe JAILLET Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/arc/emac_rockchip.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/drivers/net/ethernet/arc/emac_rockchip.c +++ b/drivers/net/ethernet/arc/emac_rockchip.c @@ -169,8 +169,10 @@ static int emac_rockchip_probe(struct pl /* Optional regulator for PHY */ priv->regulator = devm_regulator_get_optional(dev, "phy"); if (IS_ERR(priv->regulator)) { - if (PTR_ERR(priv->regulator) == -EPROBE_DEFER) - return -EPROBE_DEFER; + if (PTR_ERR(priv->regulator) == -EPROBE_DEFER) { + err = -EPROBE_DEFER; + goto out_clk_disable; + } dev_err(dev, "no regulator found\n"); priv->regulator = NULL; }