[patch 1/3] Add return value to reserve_bootmem_node()

[Bernhard Walle <bwalle@suse.de>]

[-- Attachment #1: reserve-bootmem-node-return --]
[-- Type: text/plain, Size: 1340 bytes --]

This patch changes the function reserve_bootmem_node() from void to int,
returning -ENOMEM if the allocation fails.


Signed-off-by: Bernhard Walle <bwalle@suse.de>;

---
 include/linux/bootmem.h |    2 +-
 mm/bootmem.c            |    6 ++++--
 2 files changed, 5 insertions(+), 3 deletions(-)

--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -94,7 +94,7 @@ extern unsigned long init_bootmem_node(p
 				       unsigned long freepfn,
 				       unsigned long startpfn,
 				       unsigned long endpfn);
-extern void reserve_bootmem_node(pg_data_t *pgdat,
+extern int reserve_bootmem_node(pg_data_t *pgdat,
 				 unsigned long physaddr,
 				 unsigned long size,
 				 int flags);
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -442,15 +442,17 @@ unsigned long __init init_bootmem_node(p
 	return init_bootmem_core(pgdat, freepfn, startpfn, endpfn);
 }
 
-void __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
+int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
 				 unsigned long size, int flags)
 {
 	int ret;
 
 	ret = can_reserve_bootmem_core(pgdat->bdata, physaddr, size, flags);
 	if (ret < 0)
-		return;
+		return -ENOMEM;
 	reserve_bootmem_core(pgdat->bdata, physaddr, size, flags);
+
+	return 0;
 }
 
 void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,