[SCSI] aacraid: reset should disable MSI interrupt
Vasily Averin [Fri, 2 Sep 2011 15:31:46 +0000 (19:31 +0400)]
scsi reset on hardware with enabled MSI interrupts generates WARNING message

[11027.798722] aacraid: Host adapter abort request (0,0,0,0)
[11027.798814] aacraid: Host adapter reset request. SCSI hang ?
[11087.762237] aacraid: SCSI bus appears hung
[11135.082543] ------------[ cut here ]------------
[11135.082646] WARNING: at drivers/pci/msi.c:658 pci_enable_msi_block+0x251/0x290()

Signed-off-by: Vasily Averin <vvs@sw.ru>
Acked-by: Mark Salyzyn <mark_salyzyn@us.xyratex.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/aacraid/commsup.c

index e7d0d47..e5f2d7d 100644 (file)
@@ -1283,6 +1283,8 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced)
        kfree(aac->queues);
        aac->queues = NULL;
        free_irq(aac->pdev->irq, aac);
+       if (aac->msi)
+               pci_disable_msi(aac->pdev);
        kfree(aac->fsa_dev);
        aac->fsa_dev = NULL;
        quirks = aac_get_driver_ident(index)->quirks;