linux-kernel - [PATCH v1] cxl/port: Convert to use ERR

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Message-Id: <20240829125235.3266865-1-liyuesong@vivo.com>
Date: Thu, 29 Aug 2024 20:52:35 +0800
From: Yuesong Li <liyuesong@...o.com>
To: dave@...olabs.net,
	jonathan.cameron@...wei.com,
	dave.jiang@...el.com,
	alison.schofield@...el.com,
	vishal.l.verma@...el.com,
	ira.weiny@...el.com,
	dan.j.williams@...el.com,
	rrichter@....com,
	terry.bowman@....com,
	Benjamin.Cheatham@....com
Cc: linux-cxl@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	opensource.kernel@...o.com,
	Yuesong Li <liyuesong@...o.com>
Subject: [PATCH v1] cxl/port: Convert to use ERR_CAST()

Use ERR_CAST() as it is designed for casting an error pointer to
another type.

This macro utilizes the __force and __must_check modifiers, which instruct
the compiler to verify for errors at the locations where it is employed.

Signed-off-by: Yuesong Li <liyuesong@...o.com>
---
 drivers/cxl/core/port.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c
index 1d5007e3795a..bdd3275ad417 100644
--- a/drivers/cxl/core/port.c
+++ b/drivers/cxl/core/port.c
@@ -941,7 +941,7 @@ struct cxl_root *devm_cxl_add_root(struct device *host,
 
 	port = devm_cxl_add_port(host, host, CXL_RESOURCE_NONE, NULL);
 	if (IS_ERR(port))
-		return (struct cxl_root *)port;
+		return ERR_CAST(port);
 
 	cxl_root = to_cxl_root(port);
 	cxl_root->ops = ops;
-- 
2.34.1