diff options
Diffstat (limited to 'kernel/kexec.c')
| -rw-r--r-- | kernel/kexec.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c index 131b1703936f..b55045bc7563 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -151,8 +151,10 @@ static int do_kimage_alloc(struct kimage **rimage, unsigned long entry, image->nr_segments = nr_segments; segment_bytes = nr_segments * sizeof(*segments); result = copy_from_user(image->segment, segments, segment_bytes); - if (result) + if (result) { + result = -EFAULT; goto out; + } /* * Verify we have good destination addresses. The caller is @@ -814,7 +816,7 @@ static int kimage_load_normal_segment(struct kimage *image, ptr = kmap(page); /* Start with a clear page */ - memset(ptr, 0, PAGE_SIZE); + clear_page(ptr); ptr += maddr & ~PAGE_MASK; mchunk = PAGE_SIZE - (maddr & ~PAGE_MASK); if (mchunk > mbytes) @@ -827,7 +829,7 @@ static int kimage_load_normal_segment(struct kimage *image, result = copy_from_user(ptr, buf, uchunk); kunmap(page); if (result) { - result = (result < 0) ? result : -EIO; + result = -EFAULT; goto out; } ubytes -= uchunk; @@ -882,7 +884,7 @@ static int kimage_load_crash_segment(struct kimage *image, kexec_flush_icache_page(page); kunmap(page); if (result) { - result = (result < 0) ? result : -EIO; + result = -EFAULT; goto out; } ubytes -= uchunk; |