1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 1815849f83cb..79f18e6d9c4f 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -286,6 +286,10 @@ int __meminit firmware_map_add_hotplug(u64 start, u64 end, const char *type)
 {
         struct firmware_map_entry *entry;
 
+        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);