linux-kernel - [PATCH 3/3] staging: dgap: fix error handling in dgap_init

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Date:	Mon,  3 Mar 2014 01:08:08 +0400
From:	Alexey Khoroshilov <khoroshilov@...ras.ru>
To:	Todza Louina <lidza.louina@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Alexey Khoroshilov <khoroshilov@...ras.ru>,
	driverdev-devel@...uxdriverproject.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org, ldv-project@...uxtesting.org
Subject: [PATCH 3/3] staging: dgap: fix error handling in dgap_init_module()

No need to call pci_unregister_driver() if pci_register_driver() failed.

Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
---
 drivers/staging/dgap/dgap.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c
index b4157d7..510e8b3 100644
--- a/drivers/staging/dgap/dgap.c
+++ b/drivers/staging/dgap/dgap.c
@@ -535,18 +535,13 @@ int dgap_init_module(void)
 	 * If something went wrong in the scan, bail out of driver.
 	 */
 	if (rc < 0) {
-		/* Only unregister the pci driver if it was actually registered. */
-		if (dgap_NumBoards)
-			pci_unregister_driver(&dgap_driver);
-		else
-			printk("WARNING: dgap driver load failed.  No DGAP boards found.\n");
-
 		dgap_cleanup_module();
-	} else {
-		dgap_create_driver_sysfiles(&dgap_driver);
-		dgap_driver_state = DRIVER_READY;
+		return rc;
 	}
 
+	dgap_create_driver_sysfiles(&dgap_driver);
+	dgap_driver_state = DRIVER_READY;
+
 	return rc;
 }
 
-- 
1.8.3.2

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