diff options
Diffstat (limited to 'drivers/base/memory.c')
| -rw-r--r-- | drivers/base/memory.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 5185bcff2de9..cafeaaf0428f 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -490,6 +490,7 @@ static int add_memory_block(int nid, struct mem_section *section, mem->phys_index = __section_nr(section); mem->state = state; + mem->section_count++; mutex_init(&mem->state_mutex); start_pfn = section_nr_to_pfn(mem->phys_index); mem->phys_device = arch_get_memory_phys_device(start_pfn); @@ -519,12 +520,16 @@ int remove_memory_block(unsigned long node_id, struct mem_section *section, mutex_lock(&mem_sysfs_mutex); mem = find_memory_block(section); - unregister_mem_sect_under_nodes(mem); - mem_remove_simple_file(mem, phys_index); - mem_remove_simple_file(mem, state); - mem_remove_simple_file(mem, phys_device); - mem_remove_simple_file(mem, removable); - unregister_memory(mem, section); + + mem->section_count--; + if (mem->section_count == 0) { + unregister_mem_sect_under_nodes(mem); + mem_remove_simple_file(mem, phys_index); + mem_remove_simple_file(mem, state); + mem_remove_simple_file(mem, phys_device); + mem_remove_simple_file(mem, removable); + unregister_memory(mem, section); + } mutex_unlock(&mem_sysfs_mutex); return 0; |