Hi Matt,
On Mon, Oct 17, 2016 at 11:04:54AM +0100, Matt Redfearn wrote:
> If platform code returns a NULL pointer to the FDT, initial_boot_params
> will not get set to a valid pointer and attempting to find the /chosen
> node in it will cause a NULL pointer dereference and the kernel to crash
> immediately on startup - with no output to the console.
>
> Fix this by checking that initial_boot_params is valid before using it.
>
> Fixes: 405bc8fd12f5 ("MIPS: Kernel: Implement KASLR using CONFIG_RELOCATABLE")
> Cc: <stable@xxxxxxxxxxxxxxx> # 4.7+
> Signed-off-by: Matt Redfearn <matt.redfearn@xxxxxxxxxx>
> ---
>
> arch/mips/kernel/relocate.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/mips/kernel/relocate.c b/arch/mips/kernel/relocate.c
> index ca1cc30c0891..8810183840ca 100644
> --- a/arch/mips/kernel/relocate.c
> +++ b/arch/mips/kernel/relocate.c
> @@ -200,6 +200,7 @@ static inline __init unsigned long get_random_boot(void)
>
> #if defined(CONFIG_USE_OF)
> /* Get any additional entropy passed in device tree */
> + if (initial_boot_params)
> {
The open brace should be on the same line as the if really.
Cheers
James
> int node, len;
> u64 *prop;
> --
> 2.7.4
>
>
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