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SubjectRe: [PATCH] x86/sgx: fix the return type of sgx_init
Date
On Wednesday, 2021-01-13 at 15:23:11 -08, Sami Tolvanen wrote:
> device_initcall() expects a function of type initcall_t, which returns
> an integer. Change the signature of sgx_init() to match.
>
> Fixes: e7e0545299d8c ("x86/sgx: Initialize metadata for Enclave Page Cache (EPC) sections")
> Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

Makes sense.

Reviewed-by: Darren Kenny <darren.kenny@oracle.com>

> ---
> arch/x86/kernel/cpu/sgx/main.c | 14 +++++++++-----
> 1 file changed, 9 insertions(+), 5 deletions(-)
>
> diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c
> index c519fc5f6948..8df81a3ed945 100644
> --- a/arch/x86/kernel/cpu/sgx/main.c
> +++ b/arch/x86/kernel/cpu/sgx/main.c
> @@ -700,25 +700,27 @@ static bool __init sgx_page_cache_init(void)
> return true;
> }
>
> -static void __init sgx_init(void)
> +static int __init sgx_init(void)
> {
> int ret;
> int i;
>
> if (!cpu_feature_enabled(X86_FEATURE_SGX))
> - return;
> + return -ENODEV;
>
> if (!sgx_page_cache_init())
> - return;
> + return -ENOMEM;
>
> - if (!sgx_page_reclaimer_init())
> + if (!sgx_page_reclaimer_init()) {
> + ret = -ENOMEM;
> goto err_page_cache;
> + }
>
> ret = sgx_drv_init();
> if (ret)
> goto err_kthread;
>
> - return;
> + return 0;
>
> err_kthread:
> kthread_stop(ksgxd_tsk);
> @@ -728,6 +730,8 @@ static void __init sgx_init(void)
> vfree(sgx_epc_sections[i].pages);
> memunmap(sgx_epc_sections[i].virt_addr);
> }
> +
> + return ret;
> }
>
> device_initcall(sgx_init);
>
> base-commit: 65f0d2414b7079556fbbcc070b3d1c9f9587606d
> --
> 2.30.0.284.gd98b1dd5eaa7-goog

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