diff options
| -rw-r--r-- | drivers/base/memory.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/base/memory.c b/drivers/base/memory.c index ddd14ce6654c..ed3ada244a07 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -613,8 +613,6 @@ static int add_memory_section(int nid, struct mem_section *section, int scn_nr = __section_nr(section); int ret = 0; - mutex_lock(&mem_sysfs_mutex); - if (context == BOOT) { /* same memory block ? */ if (mem_p && *mem_p) @@ -643,7 +641,6 @@ static int add_memory_section(int nid, struct mem_section *section, ret = register_mem_sect_under_node(mem, nid); } - mutex_unlock(&mem_sysfs_mutex); return ret; } @@ -653,7 +650,13 @@ static int add_memory_section(int nid, struct mem_section *section, */ int register_new_memory(int nid, struct mem_section *section) { - return add_memory_section(nid, section, NULL, MEM_OFFLINE, HOTPLUG); + int ret; + + mutex_lock(&mem_sysfs_mutex); + ret = add_memory_section(nid, section, NULL, MEM_OFFLINE, HOTPLUG); + mutex_unlock(&mem_sysfs_mutex); + + return ret; } #ifdef CONFIG_MEMORY_HOTREMOVE @@ -746,6 +749,7 @@ int __init memory_dev_init(void) * Create entries for memory sections that were found * during boot and have been initialized */ + mutex_lock(&mem_sysfs_mutex); for (i = 0; i < NR_MEM_SECTIONS; i++) { if (!present_section_nr(i)) continue; @@ -757,6 +761,7 @@ int __init memory_dev_init(void) if (!ret) ret = err; } + mutex_unlock(&mem_sysfs_mutex); out: if (ret) |