[PATCH 3/4] staging: dgnc: unregister pci driver

[Sudip Mukherjee <sudipm.mukherjee@gmail.com>]

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>
---
 drivers/staging/dgnc/dgnc_driver.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index 1d1d5c8..22a92d1 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);
 }
 
 /*
-- 
1.9.1