xen-changelog

[Top] [All Lists]

[Xen-changelog] [xen-unstable] x86/MSI: fix dump_msi() after c/s 24068:6

from [Xen patchbot-unstable]

[Permanent Link][Original]

To:	xen-changelog@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-changelog] [xen-unstable] x86/MSI: fix dump_msi() after c/s 24068:6928172f7ded
From:	Xen patchbot-unstable <patchbot@xxxxxxx>
Date:	Fri, 11 Nov 2011 04:33:37 +0000
Delivery-date:	Thu, 10 Nov 2011 20:39:32 -0800
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxxx
List-help:	<mailto:xen-changelog-request@lists.xensource.com?subject=help>
List-id:	BK change log <xen-changelog.lists.xensource.com>
List-post:	<mailto:xen-changelog@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/mailman/listinfo/xen-changelog>, <mailto:xen-changelog-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/mailman/listinfo/xen-changelog>, <mailto:xen-changelog-request@lists.xensource.com?subject=unsubscribe>
Reply-to:	xen-devel@xxxxxxxxxxxxxxxxxxx
Sender:	xen-changelog-bounces@xxxxxxxxxxxxxxxxxxx

# HG changeset patch
# User Jan Beulich <jbeulich@xxxxxxxx>
# Date 1320831380 -3600
# Node ID 33215c3868a181c17dda1d0629d767d5b9c8a0f0
# Parent  fb1b32c9d03dfa5af4014688556a97805b118ac9
x86/MSI: fix dump_msi() after c/s 24068:6928172f7ded

The function must not blindly take the lock on IRQ descriptors.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
---


diff -r fb1b32c9d03d -r 33215c3868a1 xen/arch/x86/msi.c
--- a/xen/arch/x86/msi.c        Tue Nov 08 19:41:47 2011 +0000
+++ b/xen/arch/x86/msi.c        Wed Nov 09 10:36:20 2011 +0100
@@ -1076,6 +1076,9 @@
         unsigned long flags;
         char type;
 
+        if ( !irq_desc_initialized(desc) )
+            continue;
+
         spin_lock_irqsave(&desc->lock, flags);
 
         entry = desc->msi_desc;

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog

[More with this subject...]

<Prev in Thread]	Current Thread	[Next in Thread>
[Xen-changelog] [xen-unstable] x86/MSI: fix dump_msi() after c/s 24068:6928172f7ded, Xen patchbot-unstable <=

Previous by Date:	[Xen-changelog] [xen-unstable] waitqueue: Double size of x86 shadow stack., Xen patchbot-unstable
Next by Date:	[Xen-changelog] [xen-unstable] mem_event: check capabilities only once, Xen patchbot-unstable
Previous by Thread:	[Xen-changelog] [xen-unstable] waitqueue: Double size of x86 shadow stack., Xen patchbot-unstable
Next by Thread:	[Xen-changelog] [xen-unstable] mem_event: check capabilities only once, Xen patchbot-unstable
Indexes:	[Date] [Thread] [Top] [All Lists]