From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 B1B451EF0AE; Tue, 3 Dec 2024 15:22:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733239346; cv=none; b=cX0qiP7c2Utz/y/3ye6NXRGiZGixCdFbrxZ7VeHogKJwVZiTPtuS/ANGqs1dDTEdzjhenH9C48DZl+v8q1s/YdWRnB3Cq4odlqsU3TnOzjBara3mUsCEd2c0Ln3VpBDBDWoRmoY3wrsG2EhxP99bihUTNMxEyjIafL7UlOUkiyw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733239346; c=relaxed/simple; bh=drmQEq1YzuAfmNPnLPE97JETLZHHDnrnwvS3AwvQvN8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JF0z7bEuHro8Lb+4pq77SUVeEifM7yx50SAmW+2hTLJ6IACbAPDZoxOsxdXCoR+OORx2w+rbd42/vm4IrYPRpYe1B1NzoJGwOOvjY1w4UjagP4aLazY6VKWF+erC2yLnWq7Xos6HIJw0iZDbxm/TY7twLMRh9rQXpwvUl9Zj3ww= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=sIvTqjbo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="sIvTqjbo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 39A31C4CECF; Tue, 3 Dec 2024 15:22:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1733239346; bh=drmQEq1YzuAfmNPnLPE97JETLZHHDnrnwvS3AwvQvN8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sIvTqjbo1EI+tFXZC2+s507JO0ZVU0ugW3FyF30bSeaweqf2vERjCPme2gXjJEUGc oiTpSdpS82pmicIj+cpPGrSgJXjOmz1HxwPh1y5n2+riuJVMxo+0SEgr6qJKfkh4UU fqt26qqjXxA5eEEE/Zl/0DUYTMuRRraB/1GvSDIU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Rosen Penev , Andrew Lunn , Paolo Abeni , Sasha Levin Subject: [PATCH 6.11 575/817] net: mdio-ipq4019: add missing error check Date: Tue, 3 Dec 2024 15:42:27 +0100 Message-ID: <20241203144018.358282494@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241203143955.605130076@linuxfoundation.org> References: <20241203143955.605130076@linuxfoundation.org> User-Agent: quilt/0.67 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 6.11-stable review patch. If anyone has any objections, please let me know. ------------------ From: Rosen Penev [ Upstream commit 9cc8d0ecdd2aad42e377e971e3bb114339df609e ] If an optional resource is found but fails to remap, return on failure. Avoids any potential problems when using the iomapped resource as the assumption is that it's available. Fixes: 23a890d493e3 ("net: mdio: Add the reset function for IPQ MDIO driver") Signed-off-by: Rosen Penev Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20241121193152.8966-1-rosenp@gmail.com Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- drivers/net/mdio/mdio-ipq4019.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/mdio/mdio-ipq4019.c b/drivers/net/mdio/mdio-ipq4019.c index 9d8f43b28aac5..ea1f64596a85c 100644 --- a/drivers/net/mdio/mdio-ipq4019.c +++ b/drivers/net/mdio/mdio-ipq4019.c @@ -352,8 +352,11 @@ static int ipq4019_mdio_probe(struct platform_device *pdev) /* The platform resource is provided on the chipset IPQ5018 */ /* This resource is optional */ res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (res) + if (res) { priv->eth_ldo_rdy = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->eth_ldo_rdy)) + return PTR_ERR(priv->eth_ldo_rdy); + } bus->name = "ipq4019_mdio"; bus->read = ipq4019_mdio_read_c22; -- 2.43.0