diff options
| author |   Fabian Frederick <fabf@skynet.be> | 2017-06-02 13:52:01 +0000 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-06-05 17:50:40 +0200 |
| commit | 171fd0222957abe28e6d78de667f457376f45cf1 (patch) | |
| tree | 8afe2646d1901ae60c3d2bb729cd97a6e4061aba /drivers/firmware | |
| parent | efi/capsule-loader: Use a cached copy of the capsule header (diff) | |
| download | linux-dev-171fd0222957abe28e6d78de667f457376f45cf1.tar.xz linux-dev-171fd0222957abe28e6d78de667f457376f45cf1.zip | |
efi/capsule: Remove NULL test on kmap()
kmap() can't fail.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Kweh Hock Leong <hock.leong.kweh@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20170602135207.21708-8-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/efi/capsule-loader.c | 4 | ||||
| -rw-r--r-- | drivers/firmware/efi/capsule.c | 4 |
2 files changed, 0 insertions, 8 deletions
diff --git a/drivers/firmware/efi/capsule-loader.c b/drivers/firmware/efi/capsule-loader.c index 5b012a467d7d..2357bcdcb44d 100644 --- a/drivers/firmware/efi/capsule-loader.c +++ b/drivers/firmware/efi/capsule-loader.c @@ -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 */ diff --git a/drivers/firmware/efi/capsule.c b/drivers/firmware/efi/capsule.c index 6eedff45e6d7..e603ccf39d80 100644 --- a/drivers/firmware/efi/capsule.c +++ b/drivers/firmware/efi/capsule.c @@ -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); |