Merge branch 'akpm' (patches from Andrew)

Merge second patchbomb from Andrew Morton:

 - most of the rest of MM

 - lots of misc things

 - procfs updates

 - printk feature work

 - updates to get_maintainer, MAINTAINERS, checkpatch

 - lib/ updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (96 commits)
  exit,stats: /* obey this comment */
  coredump: add __printf attribute to cn_*printf functions
  coredump: use from_kuid/kgid when formatting corename
  fs/reiserfs: remove unneeded cast
  NILFS2: support NFSv2 export
  fs/befs/btree.c: remove unneeded initializations
  fs/minix: remove unneeded cast
  init/do_mounts.c: add create_dev() failure log
  kasan: remove duplicate definition of the macro KASAN_FREE_PAGE
  fs/efs: femove unneeded cast
  checkpatch: emit "NOTE: <types>" message only once after multiple files
  checkpatch: emit an error when there's a diff in a changelog
  checkpatch: validate MODULE_LICENSE content
  checkpatch: add multi-line handling for PREFER_ETHER_ADDR_COPY
  checkpatch: suggest using eth_zero_addr() and eth_broadcast_addr()
  checkpatch: fix processing of MEMSET issues
  checkpatch: suggest using ether_addr_equal*()
  checkpatch: avoid NOT_UNIFIED_DIFF errors on cover-letter.patch files
  checkpatch: remove local from codespell path
  checkpatch: add --showfile to allow input via pipe to show filenames
  ...

2 files changed, 8 insertions, 2 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 7260b27ebbab..f0c2e681b506 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1136,6 +1136,7 @@ endif # CGROUPS
 
 config CHECKPOINT_RESTORE
         bool "Checkpoint/restore support" if EXPERT
+        select PROC_CHILDREN
         default n
         help
           Enables additional kernel features in a sake of checkpoint/restore.
diff --git a/init/do_mounts.c b/init/do_mounts.c
index a95bbdb2a502..dea5de95c2dd 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -533,8 +533,13 @@ void __init mount_root(void)
         }
 #endif
 #ifdef CONFIG_BLOCK
-        create_dev("/dev/root", ROOT_DEV);
-        mount_block_root("/dev/root", root_mountflags);
+        {
+                int err = create_dev("/dev/root", ROOT_DEV);
+
+                if (err < 0)
+                        pr_emerg("Failed to create /dev/root: %d\n", err);
+                mount_block_root("/dev/root", root_mountflags);
+        }
 #endif
 }