[SCSI] aacraid: Fix extra unregister_chrdev
Received from Mark Salyzyn
If there are no aacraid controllers, we do not create the raid
controller chrdev, thus when the driver is unloaded it performs a
superfluous deregistration.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index fbd4f55..9437a4c 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1023,7 +1023,8 @@
static void __exit aac_exit(void)
{
- unregister_chrdev(aac_cfg_major, "aac");
+ if (aac_cfg_major > -1)
+ unregister_chrdev(aac_cfg_major, "aac");
pci_unregister_driver(&aac_pci_driver);
}