cciss: fix regression that no device nodes are created if no logical drives are confi...

Fix regression in cciss driver that if no logical drives are configured,
no device nodes at all get created.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 5f1e1cc6165a91b5b5388dcabc8bac06d13db782..f5521051a8dc4355c622b1350c13377f02c537ea 100644 (file)
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3546,6 +3546,10 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
        for (j = 0; j <= hba[i]->highest_lun; j++)
                add_disk(hba[i]->gendisk[j]);
 
+       /* we must register the controller even if no disks exist */
+       if (hba[i]->highest_lun == -1)
+               add_disk(hba[i]->gendisk[0]);
+
        return 1;
 
       clean4: