Prev: mm:highmem.h remove obsolete memclear_highpage_flush() call.
Next: [PATCH 09/11] __setup_vector_irq: handle NULL chip_data
From: Stefano Stabellini on 24 May 2010 14:30
Make sure chip_data is not NULL before accessing it (the VIRQ_TIMER
handler and virq handlers in general don't have any chip_data).

Signed-off-by: Stefano Stabellini <stefano.stabellini(a)eu.citrix.com>
---
arch/x86/kernel/apic/io_apic.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index eb2789c..c64499c 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1732,6 +1732,8 @@ __apicdebuginit(void) print_IO_APIC(void)
struct irq_pin_list *entry;

cfg = desc->chip_data;
+ if (!cfg)
+ continue;
entry = cfg->irq_2_pin;
if (!entry)
continue;
--
1.5.4.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo(a)vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
 | 
Pages: 1
Prev: mm:highmem.h remove obsolete memclear_highpage_flush() call.
Next: [PATCH 09/11] __setup_vector_irq: handle NULL chip_data