* [PATCH 09/11] Fix possible NULL pointer dereference in print_IO_APIC
@ 2010-05-10 14:20 Stefano Stabellini
0 siblings, 0 replies; only message in thread
From: Stefano Stabellini @ 2010-05-10 14:20 UTC (permalink / raw)
To: xen-devel; +Cc: Stefano Stabellini
Make sure chip_data is not NULL before accessing it.
Signed-off-by: Stefano Stabellini <stefano.stabellini@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 dc69f28..96f6bba 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1690,6 +1690,8 @@ __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
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2010-05-10 14:20 [PATCH 09/11] Fix possible NULL pointer dereference in print_IO_APIC Stefano Stabellini
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