On 20 May 2015 at 01:55, Bin Meng <bmeng...@gmail.com> wrote:
> If pirq_routing_table points to NULL, that means U-Boot fails to
> generate the table before in create_pirq_routing_table(), so we
> test it against NULL before actually writing it.
>
> Signed-off-by: Bin Meng <bmeng...@gmail.com>
> ---
>
> arch/x86/cpu/irq.c | 3 +++
> 1 file changed, 3 insertions(+)
Acked-by: Simon Glass <s...@chromium.org>
>
> diff --git a/arch/x86/cpu/irq.c b/arch/x86/cpu/irq.c
> index 32dc6f2..ce6334b 100644
> --- a/arch/x86/cpu/irq.c
> +++ b/arch/x86/cpu/irq.c
> @@ -217,5 +217,8 @@ void pirq_init(void)
>
> u32 write_pirq_routing_table(u32 addr)
> {
> + if (!pirq_routing_table)
> + return addr;
> +
> return copy_pirq_routing_table(addr, pirq_routing_table);
> }
> --
> 1.8.2.1
>
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