lkml.org 
[lkml]   [2008]   [Dec]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] xen: make sure irq_desc is allocated for interrupts
Impact: bugfix

Make sure all Xen irqs have an irq_desc.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
drivers/xen/events.c | 5 +++++
1 file changed, 5 insertions(+)

===================================================================
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -233,6 +233,7 @@
static int find_unbound_irq(void)
{
int irq;
+ struct irq_desc *desc;

/* Only allocate from dynirq range */
for (irq = 0; irq < nr_irqs; irq++)
@@ -242,6 +243,10 @@
if (irq == nr_irqs)
panic("No available IRQ to bind to: increase nr_irqs!\n");

+ desc = irq_to_desc_alloc_cpu(irq, 0);
+ if (WARN_ON(desc == NULL))
+ return -1;
+
return irq;
}




\
 
 \ /
  Last update: 2008-12-17 22:45    [W:0.257 / U:0.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site