diff --git a/drivers/char/tpm/eventlog/efi.c b/drivers/char/tpm/eventlog/efi.c
index 68f1e7ee60ce71a3e4464bb18fe76690d4a0eb42..3e673ab22cb453ab37d8e77246429e6b995470db 100644
--- a/drivers/char/tpm/eventlog/efi.c
+++ b/drivers/char/tpm/eventlog/efi.c
@@ -51,10 +51,9 @@ int tpm_read_log_efi(struct tpm_chip *chip)
 	}
 
 	/* malloc EventLog space */
-	log->bios_event_log = kmalloc(log_size, GFP_KERNEL);
+	log->bios_event_log = kmemdup(log_tbl->log, log_size, GFP_KERNEL);
 	if (!log->bios_event_log)
 		goto err_memunmap;
-	memcpy(log->bios_event_log, log_tbl->log, log_size);
 	log->bios_event_log_end = log->bios_event_log + log_size;
 
 	tpm_log_version = log_tbl->version;