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| author | Cyrill Gorcunov <gorcunov@openvz.org> | 2009-08-01 11:48:00 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-05 10:30:50 +0200 |
| commit | a7428cd2ef77734465e36bceb43290e37e2a97c6 (patch) | |
| tree | 244b5b95fb559806307103a14c464a9f1d38386c /arch/x86/kernel/apic/io_apic.c | |
| parent | 2977fb3ffc8493a2f4f0a362e8660a6cde9f1bb9 (diff) | |
| download | linux-stable-a7428cd2ef77734465e36bceb43290e37e2a97c6.tar.gz linux-stable-a7428cd2ef77734465e36bceb43290e37e2a97c6.tar.bz2 linux-stable-a7428cd2ef77734465e36bceb43290e37e2a97c6.zip | |
x86, ioapic: Throw BUG instead of NULL dereference
Instead of plain NULL deref we better throw error
message with a backtrace. Actually we need more
gracious error handling here. Meanwhile leave it
as is.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: yinghai@kernel.org
LKML-Reference: <20090801075435.769301745@openvz.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/apic/io_apic.c')
| -rw-r--r-- | arch/x86/kernel/apic/io_apic.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index ffd8fdfcbe4c..2a145d3a8375 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -503,6 +503,10 @@ static void add_pin_to_irq_node(struct irq_cfg *cfg, int node, int apic, int pin } entry = get_one_free_irq_2_pin(node); + if (!entry) { + printk(KERN_ERR "can not alloc irq_pin_list\n"); + BUG_ON(1); + } entry->apic = apic; entry->pin = pin; |