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-rw-r--r--drivers/firmware/memmap.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 79f18e6d9c4f..cc016c615c19 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)