On Fri, 2013-08-16 at 15:06 +0800, Tang Chen wrote:
> strncmp() does not check if the params are NULL. In acpi_table_parse(),
> if @id is NULL, the kernel will panic.
> 
> Signed-off-by: Tang Chen <tangc...@cn.fujitsu.com>

Acked-by: Toshi Kani <toshi.k...@hp.com>

-Toshi


> ---
>  drivers/acpi/tables.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
> index d67a1fe..5a5263b 100644
> --- a/drivers/acpi/tables.c
> +++ b/drivers/acpi/tables.c
> @@ -293,7 +293,7 @@ int __init acpi_table_parse(char *id, 
> acpi_tbl_table_handler handler)
>       if (acpi_disabled)
>               return -ENODEV;
>  
> -     if (!handler)
> +     if (!id || !handler)
>               return -EINVAL;
>  
>       if (strncmp(id, ACPI_SIG_MADT, 4) == 0)


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