From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: Sat, 27 Feb 2016 12:03:34 +0000 (+0530)
Subject: staging: dgnc: unregister pci driver
X-Git-Tag: v4.6-rc1~103^2~101
X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;h=b3ca2e08e7dbec872458742b5a7d3b2b15826649;p=cascardo%2Flinux.git

staging: dgnc: unregister pci driver

We may choose to load the module without the hardware present. That will
register the pci driver but since probe will not succeed so
dgnc_NumBoards will be 0. Now if we unload the module then the pci
driver stays registered as dgnc_NumBoards is 0. And if we try to load
the module again it fails with the error:
"Driver 'dgnc' is already registered."

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index 1d1d5c8c66ef..22a92d15ee9d 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -156,8 +156,7 @@ static void dgnc_cleanup_module(void)
 
 	dgnc_tty_post_uninit();
 
-	if (dgnc_NumBoards)
-		pci_unregister_driver(&dgnc_driver);
+	pci_unregister_driver(&dgnc_driver);
 }
 
 /*