From: Vasily Averin <vvs@parallels.com>
Date: Fri, 2 Sep 2011 15:31:46 +0000 (+0400)
Subject: aacraid: reset should disable MSI interrupt
X-Git-Tag: v2.6.27.60~49
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=105e18c51e5b79e330e98b308151c9a6066ac770;p=thirdparty%2Fkernel%2Fstable.git

aacraid: reset should disable MSI interrupt

commit d0efab26f89506387a1bde898556660e06d7eb15 upstream.

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>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Willy Tarreau <w@1wt.eu>
---

diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c
index 289304aab690d..f02704e6a3382 100644
--- a/drivers/scsi/aacraid/commsup.c
+++ b/drivers/scsi/aacraid/commsup.c
@@ -1202,6 +1202,8 @@ 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;