Messages in this thread Patch in this message | | | From | Sudip Mukherjee <> | Subject | [PATCH 3/4] staging: dgnc: unregister pci driver | Date | Sat, 27 Feb 2016 17:33:34 +0530 |
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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
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