1 files changed, 3 insertions, 1 deletions
diff --git a/include/lmb.h b/include/lmb.h
index ed472e9ef2e..157a24baf97 100644
--- a/include/lmb.h
+++ b/include/lmb.h
@@ -124,7 +124,7 @@ struct lmb {
  * Return: 0 on success, -ve value on failure
  *
  * When the allocation is of type @LMB_MEM_ALLOC_ADDR, the return value can
- * be -EINVAL if the requested memory region is not part of the LMB memory
+ * be -EFAULT if the requested memory region is not part of the LMB memory
  * map, and -EEXIST if the requested region is already allocated.
  */
 int lmb_alloc_mem(enum lmb_mem_type type, u64 align, phys_addr_t *addr,
@@ -168,6 +168,8 @@ int lmb_is_reserved_flags(phys_addr_t addr, int flags);
  * @flags: Memory region attributes
  *
  * Return: 0 on success, negative error code on failure.
+ *
+ * The return value can be -EFAULT when the region has not been allocated.
  */
 long lmb_free(phys_addr_t base, phys_size_t size, u32 flags);