diff --git a/drivers/firmware/google/cbmem.c b/drivers/firmware/google/cbmem.c
index 685f3070ce9d82c93a47a7a06b5783f9095268d9..88e587ba1e0da3f5e9287c3ac42c7a0f4fb82809 100644
--- a/drivers/firmware/google/cbmem.c
+++ b/drivers/firmware/google/cbmem.c
@@ -106,8 +106,8 @@ static int cbmem_entry_probe(struct coreboot_device *dev)
 	entry->mem_file_buf = devm_memremap(&dev->dev, dev->cbmem_entry.address,
 					    dev->cbmem_entry.entry_size,
 					    MEMREMAP_WB);
-	if (!entry->mem_file_buf)
-		return -ENOMEM;
+	if (IS_ERR(entry->mem_file_buf))
+		return PTR_ERR(entry->mem_file_buf);
 
 	entry->size = dev->cbmem_entry.entry_size;