kasan: separate report parts by empty lines

Makes the report easier to read.

Link: http://lkml.kernel.org/r/20170302134851.101218-10-andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 7d3d9670e233..beee0e980e2d 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -237,7 +237,9 @@ static void describe_object(struct kmem_cache *cache, void *object,
 
         if (cache->flags & SLAB_KASAN) {
                 print_track(&alloc_info->alloc_track, "Allocated");
+                pr_err("\n");
                 print_track(&alloc_info->free_track, "Freed");
+                pr_err("\n");
         }
 
         describe_object_addr(cache, object, addr);
@@ -248,6 +250,7 @@ static void print_address_description(void *addr)
         struct page *page = addr_to_page(addr);
 
         dump_stack();
+        pr_err("\n");
 
         if (page && PageSlab(page)) {
                 struct kmem_cache *cache = page->slab_cache;
@@ -326,7 +329,9 @@ void kasan_report_double_free(struct kmem_cache *cache, void *object,
 
         kasan_start_report(&flags);
         pr_err("BUG: KASAN: double-free or invalid-free in %pS\n", ip);
+        pr_err("\n");
         print_address_description(object);
+        pr_err("\n");
         print_shadow_for_address(object);
         kasan_end_report(&flags);
 }
@@ -338,11 +343,13 @@ static void kasan_report_error(struct kasan_access_info *info)
         kasan_start_report(&flags);
 
         print_error_description(info);
+        pr_err("\n");
 
         if (!addr_has_shadow(info)) {
                 dump_stack();
         } else {
                 print_address_description((void *)info->access_addr);
+                pr_err("\n");
                 print_shadow_for_address(info->first_bad_addr);
         }