From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CAF24472F99; Fri, 7 Aug 2026 15:03:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786115018; cv=none; b=iS/2wYY1+Q0/nlbwhyTvPNUjQ+nRV4sRchCIgDcxa9TkyqIDcsdnD5YHYyBoLI792IzwyiOvCB1ksaGqDkE3yQb+w+9Qaw4TUr7HRwbuV1oDhFoBHN/HejwjCJIMu6nt1L+x/1OohA9TUUJ3sjj2wZ4zFAzjdW06LIibXxlelhw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786115018; c=relaxed/simple; bh=Jy//1fOl3qOguuKlTE3NZ35mhrutBJFdrXXRDndIiaw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rzshEz1UZkU3BAlhrrupqR3Nb4wPK2NuRXbvq8dSjERwZsxgBeIdPT+5H/RS4pQxR6TaqvSnsBogslC3XeuKrhe75nP2DrrOzLFkpQrUfG/dQQLMR7JQV1+idtZ6/6tO1j92tJDpY+ycugKmsENkWGb99Q4NT0SPk3OcoC6VnlA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=WxgKfoHW; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="WxgKfoHW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 327941F000E9; Fri, 7 Aug 2026 15:03:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786115016; bh=zW0iCQGCmZNhux1Al2nSa97vyzZ1zNu6MhpEZaJLLjM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=WxgKfoHWeTr1EcBhmg8xvxm0EjnrZt5+0RgrkK+LEAfa92TQUYv5esWO7q1FfWCUP 9iUcIqjOhwKRIm+g2IiIresGkj0H3JTSoWMF5kdZ6C+KYMPOvQXMOXgbsv2m1+x7s+ yb3rpYngTxlCeF5thITU9BzQRCId+p/cGxG7wkvM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Christian Marangi , Andrew Lunn , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.18 127/396] net: phylink: put link_gpio if phylink_create fails Date: Fri, 7 Aug 2026 16:34:47 +0200 Message-ID: <20260807143427.048243222@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260807143424.272339768@linuxfoundation.org> References: <20260807143424.272339768@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Christian Marangi [ Upstream commit 0fe1e3e8f3380d7862296a73b528d164e96c76b8 ] In phylink_create() if phylink_register_sfp() returns an error, link_gpio obtained by phylink_parse_fixedlink() is never released. While this is a very unlikely scenario, it's worth to fix/handle this. This was present from the very first implementation of phylink but got relevant only with the introduction of ce0aa27ff3f6 ("sfp: add sfp-bus to bridge between network devices and sfp cages") where additional function were added after phylink_parse_fixedlink() making the release of link_gpio needed if such additional function errored out. While at it, restructure the exit condition of phylink_create() with the goto pattern to reduce code duplication on handling error conditions. Fixes: ce0aa27ff3f6 ("sfp: add sfp-bus to bridge between network devices and sfp cages") Signed-off-by: Christian Marangi Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20260726150806.2437-1-ansuelsmth@gmail.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/phy/phylink.c | 29 +++++++++++++++-------------- 1 file changed, 15 insertions(+), 14 deletions(-) diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 9182443082158..1b7fc17bf3919 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -1861,8 +1861,8 @@ struct phylink *phylink_create(struct phylink_config *config, } else if (config->type == PHYLINK_DEV) { pl->dev = config->dev; } else { - kfree(pl); - return ERR_PTR(-EINVAL); + ret = -EINVAL; + goto free_pl; } pl->mac_supports_eee_ops = phylink_mac_implements_lpi(mac_ops); @@ -1895,28 +1895,29 @@ struct phylink *phylink_create(struct phylink_config *config, phylink_validate(pl, pl->supported, &pl->link_config); ret = phylink_parse_mode(pl, fwnode); - if (ret < 0) { - kfree(pl); - return ERR_PTR(ret); - } + if (ret < 0) + goto free_pl; if (pl->cfg_link_an_mode == MLO_AN_FIXED) { ret = phylink_parse_fixedlink(pl, fwnode); - if (ret < 0) { - kfree(pl); - return ERR_PTR(ret); - } + if (ret < 0) + goto release_link_gpio; } pl->req_link_an_mode = pl->cfg_link_an_mode; ret = phylink_register_sfp(pl, fwnode); - if (ret < 0) { - kfree(pl); - return ERR_PTR(ret); - } + if (ret < 0) + goto release_link_gpio; return pl; + +release_link_gpio: + if (pl->link_gpio) + gpiod_put(pl->link_gpio); +free_pl: + kfree(pl); + return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(phylink_create); -- 2.53.0