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[2a02:8389:41cf:e200:b273:88b2:f83b:5936]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-431935f7213sm123899495e9.32.2024.10.28.15.34.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Oct 2024 15:34:33 -0700 (PDT) From: Javier Carrasco Date: Mon, 28 Oct 2024 23:33:58 +0100 Subject: [PATCH 1/2] phy: tegra: xusb: fix device release in tegra210_xusb_padctl_probe Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241028-phy-tegra-xusb-tegra210-put_device-v1-1-28f74368c9ba@gmail.com> References: <20241028-phy-tegra-xusb-tegra210-put_device-v1-0-28f74368c9ba@gmail.com> In-Reply-To: <20241028-phy-tegra-xusb-tegra210-put_device-v1-0-28f74368c9ba@gmail.com> To: JC Kuo , Vinod Koul , Kishon Vijay Abraham I , Thierry Reding , Jonathan Hunter Cc: Thierry Reding , linux-phy@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Javier Carrasco , stable@vger.kernel.org X-Mailer: b4 0.14-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1730154870; l=1220; i=javier.carrasco.cruz@gmail.com; s=20240312; h=from:subject:message-id; bh=ShLgN2bKe4JPnIwWKc8bL7okfKb596zokxGFYpN8MrY=; b=CkUGA0g9V9/hi4kz0/FdhdlF68Sq5yOTG7pgrsPGdhuQfPzIqy3K/JA1kPIs5LQiP9EYbaGmh QgBISNz3DEXD3rkLwdrhr9h2sixv9p9sG85wxwHzFrJ7fKGioXLJ/jB X-Developer-Key: i=javier.carrasco.cruz@gmail.com; a=ed25519; pk=lzSIvIzMz0JhJrzLXI0HAdPwsNPSSmEn6RbS+PTS9aQ= A reference to a device acquired via of_find_device_by_node() needs to be released when it is no longer required by decrementing its refcount, which avoids leaking the resource. Add the missing call to platform_device_put() as soon as 'pdev' is no longer required. Cc: stable@vger.kernel.org Fixes: 2d1021487273 ("phy: tegra: xusb: Add wake/sleepwalk for Tegra210") Signed-off-by: Javier Carrasco --- drivers/phy/tegra/xusb-tegra210.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/phy/tegra/xusb-tegra210.c b/drivers/phy/tegra/xusb-tegra210.c index ebc8a7e21a31..9c7fdd29b7c4 100644 --- a/drivers/phy/tegra/xusb-tegra210.c +++ b/drivers/phy/tegra/xusb-tegra210.c @@ -3169,13 +3169,17 @@ tegra210_xusb_padctl_probe(struct device *dev, goto out; } - if (!platform_get_drvdata(pdev)) + if (!platform_get_drvdata(pdev)) { + platform_device_put(pdev); return ERR_PTR(-EPROBE_DEFER); + } padctl->regmap = dev_get_regmap(&pdev->dev, "usb_sleepwalk"); if (!padctl->regmap) dev_info(dev, "failed to find PMC regmap\n"); + platform_device_put(pdev); + out: return &padctl->base; } From patchwork Mon Oct 28 22:33:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Carrasco X-Patchwork-Id: 2003528 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; 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[2a02:8389:41cf:e200:b273:88b2:f83b:5936]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-431935f7213sm123899495e9.32.2024.10.28.15.34.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Oct 2024 15:34:35 -0700 (PDT) From: Javier Carrasco Date: Mon, 28 Oct 2024 23:33:59 +0100 Subject: [PATCH 2/2] phy: tegra: xusb: fix device node release in tegra210_xusb_padctl_probe Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241028-phy-tegra-xusb-tegra210-put_device-v1-2-28f74368c9ba@gmail.com> References: <20241028-phy-tegra-xusb-tegra210-put_device-v1-0-28f74368c9ba@gmail.com> In-Reply-To: <20241028-phy-tegra-xusb-tegra210-put_device-v1-0-28f74368c9ba@gmail.com> To: JC Kuo , Vinod Koul , Kishon Vijay Abraham I , Thierry Reding , Jonathan Hunter Cc: Thierry Reding , linux-phy@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Javier Carrasco , stable@vger.kernel.org X-Mailer: b4 0.14-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1730154870; l=944; i=javier.carrasco.cruz@gmail.com; s=20240312; h=from:subject:message-id; bh=gKmGr/5ZnbM158J5N7jUh0J54APzNpxKlRD/E0i5/nw=; b=KpcDPrw47pH11bD3BEXoFXs1mAg0X+fkMwnitv4El8oVws91tHTegbMBR8eatX78+ife0YUKS wYuBrsZ6YOlCVGkVRhAhsdX9BmDmUtpEHYFJGUsxyFE6FVqn5E5TqYm X-Developer-Key: i=javier.carrasco.cruz@gmail.com; a=ed25519; pk=lzSIvIzMz0JhJrzLXI0HAdPwsNPSSmEn6RbS+PTS9aQ= A device_node acquired via of_parse_phandle() needs a call to of_node_put() when the it is no longer required to decrement its refcount and avoid leaking the resource. Add the missing call to of_node_put() as soon as 'np' is no longer required. Cc: stable@vger.kernel.org Fixes: 2d1021487273 ("phy: tegra: xusb: Add wake/sleepwalk for Tegra210") Signed-off-by: Javier Carrasco --- drivers/phy/tegra/xusb-tegra210.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/phy/tegra/xusb-tegra210.c b/drivers/phy/tegra/xusb-tegra210.c index 9c7fdd29b7c4..a77127d6c4fa 100644 --- a/drivers/phy/tegra/xusb-tegra210.c +++ b/drivers/phy/tegra/xusb-tegra210.c @@ -3164,6 +3164,7 @@ tegra210_xusb_padctl_probe(struct device *dev, } pdev = of_find_device_by_node(np); + of_node_put(np); if (!pdev) { dev_warn(dev, "PMC device is not available\n"); goto out;