Re: [PATCH] correct call to free_pages to specify memory size inpages, not bytes.

From: Matt Fleming
Date: Fri Jul 26 2013 - 10:59:09 EST


On 25/07/13 01:48, Roy Franz wrote:
> Signed-off-by: Roy Franz <roy.franz@xxxxxxxxxx>
> ---
> arch/x86/boot/compressed/eboot.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
> index d606463..b7388a4 100644
> --- a/arch/x86/boot/compressed/eboot.c
> +++ b/arch/x86/boot/compressed/eboot.c
> @@ -225,7 +225,7 @@ static void low_free(unsigned long size, unsigned long addr)
> unsigned long nr_pages;
>
> nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
> - efi_call_phys2(sys_table->boottime->free_pages, addr, size);
> + efi_call_phys2(sys_table->boottime->free_pages, addr, nr_pages);
> }
>
> static void find_bits(unsigned long mask, u8 *pos, u8 *size)

Thanks Roy. I pulled this into my urgent queue, as it's obviously a bug
and I don't fancy our chances if we ask the firmware to free more memory
than it initially allocated.
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