lkml.org 
[lkml]   [2017]   [Mar]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v2 1/7] efi/capsule: Fix return code on failing kmap/vmap
On 24 March 2017 at 17:34, Jan Kiszka <jan.kiszka@siemens.com> wrote:
> If kmap or vmap fail, it means we ran out of memory. There are no
> user-provided addressed involved that would justify EFAULT.
>
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

> ---
> drivers/firmware/efi/capsule-loader.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/firmware/efi/capsule-loader.c b/drivers/firmware/efi/capsule-loader.c
> index 9ae6c11..91e91f7 100644
> --- a/drivers/firmware/efi/capsule-loader.c
> +++ b/drivers/firmware/efi/capsule-loader.c
> @@ -113,7 +113,7 @@ static ssize_t efi_capsule_submit_update(struct capsule_info *cap_info)
> VM_MAP, PAGE_KERNEL);
> if (!cap_hdr_temp) {
> pr_debug("%s: vmap() failed\n", __func__);
> - return -EFAULT;
> + return -ENOMEM;
> }
>
> ret = efi_capsule_update(cap_hdr_temp, cap_info->pages);
> @@ -185,7 +185,7 @@ static ssize_t efi_capsule_write(struct file *file, const char __user *buff,
> kbuff = kmap(page);
> if (!kbuff) {
> pr_debug("%s: kmap() failed\n", __func__);
> - ret = -EFAULT;
> + ret = -ENOMEM;
> goto failed;
> }
> kbuff += PAGE_SIZE - cap_info->page_bytes_remain;
> --
> 2.10.2
>

\
 
 \ /
  Last update: 2017-03-24 19:16    [W:0.131 / U:0.264 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site