diff options
Diffstat (limited to 'drivers/firmware/memmap.c')
| -rw-r--r-- | drivers/firmware/memmap.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c index 17cf96c45f2..cc016c615c1 100644 --- a/drivers/firmware/memmap.c +++ b/drivers/firmware/memmap.c @@ -184,6 +184,9 @@ static int add_sysfs_fw_map_entry(struct firmware_map_entry *entry) static int map_entries_nr; static struct kset *mmap_kset; + if (entry->kobj.state_in_sysfs) + return -EEXIST; + if (!mmap_kset) { mmap_kset = kset_create_and_add("memmap", NULL, firmware_kobj); if (!mmap_kset) @@ -286,7 +289,11 @@ int __meminit firmware_map_add_hotplug(u64 start, u64 end, const char *type) { struct firmware_map_entry *entry; - entry = firmware_map_find_entry_bootmem(start, end, type); + entry = firmware_map_find_entry(start, end - 1, type); + if (entry) + return 0; + + entry = firmware_map_find_entry_bootmem(start, end - 1, type); if (!entry) { entry = kzalloc(sizeof(struct firmware_map_entry), GFP_ATOMIC); if (!entry) |