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SubjectRe: [PATCH v2 2/7] efi/capsule: Remove pr_debug on ENOMEM or EFAULT
On 24 March 2017 at 17:34, Jan Kiszka <jan.kiszka@siemens.com> wrote:
> Both cases are not worth a debug log message - the error code is telling
> enough.
>
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

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

> ---
> drivers/firmware/efi/capsule-loader.c | 11 ++---------
> 1 file changed, 2 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/firmware/efi/capsule-loader.c b/drivers/firmware/efi/capsule-loader.c
> index 91e91f7..7b57dda 100644
> --- a/drivers/firmware/efi/capsule-loader.c
> +++ b/drivers/firmware/efi/capsule-loader.c
> @@ -88,10 +88,8 @@ static ssize_t efi_capsule_setup_info(struct capsule_info *cap_info,
> temp_page = krealloc(cap_info->pages,
> pages_needed * sizeof(void *),
> GFP_KERNEL | __GFP_ZERO);
> - if (!temp_page) {
> - pr_debug("%s: krealloc() failed\n", __func__);
> + if (!temp_page)
> return -ENOMEM;
> - }
>
> cap_info->pages = temp_page;
> cap_info->header_obtained = true;
> @@ -111,10 +109,8 @@ static ssize_t efi_capsule_submit_update(struct capsule_info *cap_info)
>
> cap_hdr_temp = vmap(cap_info->pages, cap_info->index,
> VM_MAP, PAGE_KERNEL);
> - if (!cap_hdr_temp) {
> - pr_debug("%s: vmap() failed\n", __func__);
> + if (!cap_hdr_temp)
> return -ENOMEM;
> - }
>
> ret = efi_capsule_update(cap_hdr_temp, cap_info->pages);
> vunmap(cap_hdr_temp);
> @@ -171,7 +167,6 @@ static ssize_t efi_capsule_write(struct file *file, const char __user *buff,
> if (!cap_info->page_bytes_remain) {
> page = alloc_page(GFP_KERNEL);
> if (!page) {
> - pr_debug("%s: alloc_page() failed\n", __func__);
> ret = -ENOMEM;
> goto failed;
> }
> @@ -184,7 +179,6 @@ 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 = -ENOMEM;
> goto failed;
> }
> @@ -193,7 +187,6 @@ static ssize_t efi_capsule_write(struct file *file, const char __user *buff,
> /* Copy capsule binary data from user space to kernel space buffer */
> write_byte = min_t(size_t, count, cap_info->page_bytes_remain);
> if (copy_from_user(kbuff, buff, write_byte)) {
> - pr_debug("%s: copy_from_user() failed\n", __func__);
> ret = -EFAULT;
> goto fail_unmap;
> }
> --
> 2.10.2
>

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