SCSI: zalon: fix oops on attach failure

commit d3a263a8168f78874254ea9da9595cfb0f3e96d7 upstream.

I recently discovered on my zalon that if the attachment fails because
of a bus misconfiguration (I scrapped my HVD array, so the card is now
unterminated) then the system oopses.  The reason is that if
ncr_attach() returns NULL (signalling failure) that NULL is passed by
the goto failed straight into ncr_detach() which oopses.

The fix is just to return -ENODEV in this case.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
index 97f3158fa7b546700ab670f3373598c5895cb546..27e84e4b1fa98857d571f3abafdfe9f4b03cf7ad 100644 (file)
--- a/drivers/scsi/zalon.c
+++ b/drivers/scsi/zalon.c
@@ -134,7 +134,7 @@ zalon_probe(struct parisc_device *dev)
 
        host = ncr_attach(&zalon7xx_template, unit, &device);
        if (!host)
-               goto fail;
+               return -ENODEV;
 
        if (request_irq(dev->irq, ncr53c8xx_intr, IRQF_SHARED, "zalon", host)) {
          dev_printk(KERN_ERR, &dev->dev, "irq problem with %d, detaching\n ",