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 C44722EAE5; Thu, 11 Apr 2024 10:51:57 +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=1712832717; cv=none; b=mDGDg8m8m/gVUtn8OPwIXP+B7GBAAG56zD/e4Rxm8H7lQqm1dxwbVAalsqzbo6AhXEaLoLSUXUvyIpSPX7vTh1bBuT0BYlFn4m/VLVs5iGN8PJ+ATAIYzVzhneUsg97QT6rx2m1iygcP900RFeZ88HcVWEAkyZ0JSemhtSsilDQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712832717; c=relaxed/simple; bh=NEDVHkUMy/4DasMakWdnxzNRgLAk7QBkFCRSqQUYu/w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=aIA/HsUv7j63Oog3qJkgLEkLk9LLlTNsUW7GqpNY0qjtuihXnLo2nA0Lz1kH8kff/BhhaNNFjC4Zf8t1JJx0ihwt4SVUTIgsR19j6iEY1B10VPjvx3flc3qiuaxMGZ+yfymY5FRcrhBUnv4dSgv0Tra6dNnOiIGGtbdd6Rp2DcQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=VrfDEDRy; 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="VrfDEDRy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47F14C433C7; Thu, 11 Apr 2024 10:51:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712832717; bh=NEDVHkUMy/4DasMakWdnxzNRgLAk7QBkFCRSqQUYu/w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VrfDEDRy7RvK4N+Lo6eD4n3Kwhj49l9WsW3KTY3MKzE3VZrLtd+AGCzmvJ7YwNPvE fkcrdDTCqaOl34Q5KnNnJ7Y8U/2C1cImtByDO1iLbOe6ibPWkWiGKkfI8QobmwnmMP karZNVODnNwWfwxL+Y1N420qvuBxpQMvHy8KBKhw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Kunwu Chan , Dmitry Torokhov , Sasha Levin Subject: [PATCH 5.15 20/57] Input: synaptics-rmi4 - fail probing if memory allocation for "phys" fails Date: Thu, 11 Apr 2024 11:57:28 +0200 Message-ID: <20240411095408.606866530@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240411095407.982258070@linuxfoundation.org> References: <20240411095407.982258070@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kunwu Chan [ Upstream commit bc4996184d56cfaf56d3811ac2680c8a0e2af56e ] While input core can work with input->phys set to NULL userspace might depend on it, so better fail probing if allocation fails. The system must be in a pretty bad shape for it to happen anyway. Signed-off-by: Kunwu Chan Link: https://lore.kernel.org/r/20240117073124.143636-1-chentao@kylinos.cn Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin --- drivers/input/rmi4/rmi_driver.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c index 258d5fe3d395c..aa32371f04af6 100644 --- a/drivers/input/rmi4/rmi_driver.c +++ b/drivers/input/rmi4/rmi_driver.c @@ -1196,7 +1196,11 @@ static int rmi_driver_probe(struct device *dev) } rmi_driver_set_input_params(rmi_dev, data->input); data->input->phys = devm_kasprintf(dev, GFP_KERNEL, - "%s/input0", dev_name(dev)); + "%s/input0", dev_name(dev)); + if (!data->input->phys) { + retval = -ENOMEM; + goto err; + } } retval = rmi_init_functions(data); -- 2.43.0