linux-kernel - [PATCH 1/4] staging: dgap: fix error path

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Date:	Thu, 16 Jul 2015 18:28:17 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Lidza Louina <lidza.louina@...il.com>,
	Mark Hounschell <markh@...pro.net>,
	Daeseok Youn <daeseok.youn@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org,
	driverdev-devel@...uxdriverproject.org, devel@...verdev.osuosl.org,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH 1/4] staging: dgap: fix error path

The code in dgap_stop() is almost a duplicate of the code that will be
executed on pci_unregister_driver(). So the error code was stopping and
unregistering everything twice.

Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
---

we had a discussion about the init and error path few months back when
another patch was sent. I am not able to find that discussion in
lkml.org

 drivers/staging/dgap/dgap.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c
index 26b0446..3a783bf 100644
--- a/drivers/staging/dgap/dgap.c
+++ b/drivers/staging/dgap/dgap.c
@@ -7133,8 +7133,10 @@ static int dgap_init_module(void)
 		return rc;
 
 	rc = pci_register_driver(&dgap_driver);
-	if (rc)
-		goto err_stop;
+	if (rc) {
+		dgap_stop();
+		return rc;
+	}
 
 	rc = dgap_create_driver_sysfiles(&dgap_driver);
 	if (rc)
@@ -7146,9 +7148,6 @@ static int dgap_init_module(void)
 
 err_unregister:
 	pci_unregister_driver(&dgap_driver);
-err_stop:
-	dgap_stop();
-
 	return rc;
 }
 
-- 
1.8.1.2

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