linux-kernel - [PATCH 5/5] staging: pi433: Remove duplicated code using the "goto" error recovery scheme.

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Message-Id: <20240328121244.1244719-7-ikobh7@gmail.com>
Date: Thu, 28 Mar 2024 14:12:44 +0200
From: Shahar Avidar <ikobh7@...il.com>
To: gregkh@...uxfoundation.org,
	hverkuil-cisco@...all.nl,
	andriy.shevchenko@...ux.intel.com,
	robh@...nel.org,
	felixkimbu1@...il.com
Cc: linux-staging@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH 5/5] staging: pi433: Remove duplicated code using the "goto" error recovery scheme.

pi433_init had "unregister_chrdev" called twice.
Remove it using goto statements.

Signed-off-by: Shahar Avidar <ikobh7@...il.com>
---
 drivers/staging/pi433/pi433_if.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 62ce75b07bf0..e538f1d4e787 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -1400,24 +1400,25 @@ static int __init pi433_init(void)
 	 */
 	status = alloc_chrdev_region(&pi433_devt, 0, N_PI433_MINORS, "pi433");
 	if (status < 0)
-		return status;
+		goto fail;
 
 	status = class_register(&pi433_class);
-	if (status) {
-		unregister_chrdev(MAJOR(pi433_devt),
-				  pi433_spi_driver.driver.name);
-		return status;
-	}
+	if (status)
+		goto unreg_chrdev;
 
 	root_dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
 
 	status = spi_register_driver(&pi433_spi_driver);
-	if (status < 0) {
-		class_unregister(&pi433_class);
-		unregister_chrdev(MAJOR(pi433_devt),
-				  pi433_spi_driver.driver.name);
-	}
+	if (status < 0)
+		goto unreg_class;
 
+	return 0;
+
+unreg_class:
+	class_unregister(&pi433_class);
+unreg_chrdev:
+	unregister_chrdev(MAJOR(pi433_devt), pi433_spi_driver.driver.name);
+fail:
 	return status;
 }
 
-- 
2.34.1