diff options
Diffstat (limited to 'kernel/kexec_core.c')
| -rw-r--r-- | kernel/kexec_core.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c index 56b3ed0927b0..23311c803b1b 100644 --- a/kernel/kexec_core.c +++ b/kernel/kexec_core.c @@ -147,7 +147,7 @@ static struct page *kimage_alloc_page(struct kimage *image, int sanity_check_segment_list(struct kimage *image) { - int result, i; + int i; unsigned long nr_segments = image->nr_segments; /* @@ -163,16 +163,15 @@ int sanity_check_segment_list(struct kimage *image) * simply because addresses are changed to page size * granularity. */ - result = -EADDRNOTAVAIL; for (i = 0; i < nr_segments; i++) { unsigned long mstart, mend; mstart = image->segment[i].mem; mend = mstart + image->segment[i].memsz; if ((mstart & ~PAGE_MASK) || (mend & ~PAGE_MASK)) - return result; + return -EADDRNOTAVAIL; if (mend >= KEXEC_DESTINATION_MEMORY_LIMIT) - return result; + return -EADDRNOTAVAIL; } /* Verify our destination addresses do not overlap. @@ -180,7 +179,6 @@ int sanity_check_segment_list(struct kimage *image) * through very weird things can happen with no * easy explanation as one segment stops on another. */ - result = -EINVAL; for (i = 0; i < nr_segments; i++) { unsigned long mstart, mend; unsigned long j; @@ -194,7 +192,7 @@ int sanity_check_segment_list(struct kimage *image) pend = pstart + image->segment[j].memsz; /* Do the segments overlap ? */ if ((mend > pstart) && (mstart < pend)) - return result; + return -EINVAL; } } @@ -203,10 +201,9 @@ int sanity_check_segment_list(struct kimage *image) * and it is easier to check up front than to be surprised * later on. */ - result = -EINVAL; for (i = 0; i < nr_segments; i++) { if (image->segment[i].bufsz > image->segment[i].memsz) - return result; + return -EINVAL; } /* @@ -220,7 +217,6 @@ int sanity_check_segment_list(struct kimage *image) */ if (image->type == KEXEC_TYPE_CRASH) { - result = -EADDRNOTAVAIL; for (i = 0; i < nr_segments; i++) { unsigned long mstart, mend; @@ -229,7 +225,7 @@ int sanity_check_segment_list(struct kimage *image) /* Ensure we are within the crash kernel limits */ if ((mstart < crashk_res.start) || (mend > crashk_res.end)) - return result; + return -EADDRNOTAVAIL; } } |