Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "A few late-breaking fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm/memblock.c: fix NULL dereference error
  MAINTAINERS: update cgroup's document path
  slub: drop bogus inline for fixup_red_left()
  powerpc/fsl_rio: fix a missing error code
  mm: initialise per_cpu_nodestats for all online pgdats at boot
  mm/memblock: fix a typo in a comment
  mm: disable CONFIG_MEMORY_HOTPLUG when KASAN is enabled

6 files changed, 16 insertions, 11 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 5e1f03f0a526..efc203109a62 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3219,7 +3219,7 @@ M:	Johannes Weiner <hannes@cmpxchg.org>
 L:	cgroups@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
 S:	Maintained
-F:	Documentation/cgroups/
+F:	Documentation/cgroup*
 F:	include/linux/cgroup*
 F:	kernel/cgroup*
 
@@ -3230,7 +3230,7 @@ W:	http://www.bullopensource.org/cpuset/
 W:	http://oss.sgi.com/projects/cpusets/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
 S:	Maintained
-F:	Documentation/cgroups/cpusets.txt
+F:	Documentation/cgroup-v1/cpusets.txt
 F:	include/linux/cpuset.h
 F:	kernel/cpuset.c
 
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index 984e816f3faf..68e7c0dd2e45 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -491,6 +491,7 @@ int fsl_rio_setup(struct platform_device *dev)
 	rmu_node = of_parse_phandle(dev->dev.of_node, "fsl,srio-rmu-handle", 0);
 	if (!rmu_node) {
 		dev_err(&dev->dev, "No valid fsl,srio-rmu-handle property\n");
+		rc = -ENOENT;
 		goto err_rmu;
 	}
 	rc = of_address_to_resource(rmu_node, 0, &rmu_regs);
diff --git a/mm/Kconfig b/mm/Kconfig
index c0837845c17c..78a23c5c302d 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -187,6 +187,7 @@ config MEMORY_HOTPLUG
 	bool "Allow for memory hot-add"
 	depends on SPARSEMEM || X86_64_ACPI_NUMA
 	depends on ARCH_ENABLE_MEMORY_HOTPLUG
+	depends on !KASAN
 
 config MEMORY_HOTPLUG_SPARSE
 	def_bool y
diff --git a/mm/memblock.c b/mm/memblock.c
index ff5ff3b5f1ea..483197ef613f 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -482,7 +482,7 @@ static void __init_memblock memblock_merge_regions(struct memblock_type *type)
  * @flags:	flags of the new region
  *
  * Insert new memblock region [@base,@base+@size) into @type at @idx.
- * @type must already have extra room to accomodate the new region.
+ * @type must already have extra room to accommodate the new region.
  */
 static void __init_memblock memblock_insert_region(struct memblock_type *type,
 						   int idx, phys_addr_t base,
@@ -544,7 +544,7 @@ repeat:
 	/*
 	 * The following is executed twice.  Once with %false @insert and
 	 * then with %true.  The first counts the number of regions needed
-	 * to accomodate the new area.  The second actually inserts them.
+	 * to accommodate the new area.  The second actually inserts them.
 	 */
 	base = obase;
 	nr_new = 0;
@@ -994,7 +994,10 @@ void __init_memblock __next_mem_range_rev(u64 *idx, int nid, ulong flags,
 
 	if (*idx == (u64)ULLONG_MAX) {
 		idx_a = type_a->cnt - 1;
-		idx_b = type_b->cnt;
+		if (type_b != NULL)
+			idx_b = type_b->cnt;
+		else
+			idx_b = 0;
 	}
 
 	for (; idx_a >= 0; idx_a--) {
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 39a372a2a1d6..fb975cec3518 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5257,11 +5257,6 @@ static void __meminit setup_zone_pageset(struct zone *zone)
 	zone->pageset = alloc_percpu(struct per_cpu_pageset);
 	for_each_possible_cpu(cpu)
 		zone_pageset_init(zone, cpu);
-
-	if (!zone->zone_pgdat->per_cpu_nodestats) {
-		zone->zone_pgdat->per_cpu_nodestats =
-			alloc_percpu(struct per_cpu_nodestat);
-	}
 }
 
 /*
@@ -5270,10 +5265,15 @@ static void __meminit setup_zone_pageset(struct zone *zone)
  */
 void __init setup_per_cpu_pageset(void)
 {
+	struct pglist_data *pgdat;
 	struct zone *zone;
 
 	for_each_populated_zone(zone)
 		setup_zone_pageset(zone);
+
+	for_each_online_pgdat(pgdat)
+		pgdat->per_cpu_nodestats =
+			alloc_percpu(struct per_cpu_nodestat);
 }
 
 static noinline __ref
diff --git a/mm/slub.c b/mm/slub.c
index 26eb6a99540e..850737bdfbd8 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -124,7 +124,7 @@ static inline int kmem_cache_debug(struct kmem_cache *s)
 #endif
 }
 
-inline void *fixup_red_left(struct kmem_cache *s, void *p)
+void *fixup_red_left(struct kmem_cache *s, void *p)
 {
 	if (kmem_cache_debug(s) && s->flags & SLAB_RED_ZONE)
 		p += s->red_left_pad;