efi/capsule: Remove NULL test on kmap()

kmap() can't fail.

Signed-off-by: Fabian Frederick <[email protected]>
Signed-off-by: Matt Fleming <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Cc: Kweh Hock Leong <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Fabian Frederick 2017-06-02 13:52:01 +00:00 • committed by Ingo Molnar
commit 171fd02229
2 changed files with 0 additions and 8 deletions

View file

@ -170,10 +170,6 @@ static ssize_t efi_capsule_write(struct file *file, const char __user *buff,
page = cap_info->pages[cap_info->index - 1];
kbuff = kmap(page);
if (!kbuff) {
ret = -ENOMEM;
goto failed;
}
kbuff += PAGE_SIZE - cap_info->page_bytes_remain;
/* Copy capsule binary data from user space to kernel space buffer */

View file

@ -247,10 +247,6 @@ int efi_capsule_update(efi_capsule_header_t *capsule, struct page **pages)
efi_capsule_block_desc_t *sglist;
sglist = kmap(sg_pages[i]);
if (!sglist) {
rv = -ENOMEM;
goto out;
}
for (j = 0; j < SGLIST_PER_PAGE && count > 0; j++) {
u64 sz = min_t(u64, imagesize, PAGE_SIZE);