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 CC9A615C82 for ; Mon, 5 Dec 2022 19:22:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4FB99C433C1; Mon, 5 Dec 2022 19:22:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1670268123; bh=e5Pk0psqIbOg8G6cAhXz2Mp5l/2k90g0fjqDo36b8FA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zp8XGgfM3T0cugZMKbNgT1UokJ8yJBrQRdPCZHbsl8ZiG0KNBGLZ5OoazDfXVl4Y3 Qn9iPBt435xgzhccODYPMQR50n9Yg7tYA7MgMtLirJ0iYRIGCDxdcos/ZPxs9lWNkv TnJMCp06wXV+5+TBk+AhJnRO95kmKbSKroepcO4Q= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yang Yingliang , Sakari Ailus , Frank Rowand , Rob Herring , Sasha Levin Subject: [PATCH 4.19 067/105] of: property: decrement node refcount in of_fwnode_get_reference_args() Date: Mon, 5 Dec 2022 20:09:39 +0100 Message-Id: <20221205190805.443346940@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221205190803.124472741@linuxfoundation.org> References: <20221205190803.124472741@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Yang Yingliang [ Upstream commit 60d865bd5a9b15a3961eb1c08bd4155682a3c81e ] In of_fwnode_get_reference_args(), the refcount of of_args.np has been incremented in the case of successful return from of_parse_phandle_with_args() or of_parse_phandle_with_fixed_args(). Decrement the refcount if of_args is not returned to the caller of of_fwnode_get_reference_args(). Fixes: 3e3119d3088f ("device property: Introduce fwnode_property_get_reference_args") Signed-off-by: Yang Yingliang Reviewed-by: Sakari Ailus Reviewed-by: Frank Rowand Link: https://lore.kernel.org/r/20221121023209.3909759-1-yangyingliang@huawei.com Signed-off-by: Rob Herring Signed-off-by: Sasha Levin --- drivers/of/property.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/of/property.c b/drivers/of/property.c index 43720c2de138..13c7e55f5cba 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -918,8 +918,10 @@ of_fwnode_get_reference_args(const struct fwnode_handle *fwnode, nargs, index, &of_args); if (ret < 0) return ret; - if (!args) + if (!args) { + of_node_put(of_args.np); return 0; + } args->nargs = of_args.args_count; args->fwnode = of_fwnode_handle(of_args.np); -- 2.35.1