[patch 2/2 v2] ACPI, extlog: remove unneeded NULL check

[Dan Carpenter <dan.carpenter@oracle.com>]

We dereference extlog_l1_addr before checking if is NULL.  It turns out
"extlog_l1_addr" pointer can never be NULL when this function is called
so I have removed the check.

We can remove the "elog_addr" check as well.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
v2: remove the elog_addr check as well.

diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
index a6869e1..17da458 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -310,10 +310,8 @@ static void __exit extlog_exit(void)
 {
 	mce_unregister_decode_chain(&extlog_mce_dec);
 	((struct extlog_l1_head *)extlog_l1_addr)->flags &= ~FLAG_OS_OPTIN;
-	if (extlog_l1_addr)
-		acpi_os_unmap_memory(extlog_l1_addr, l1_size);
-	if (elog_addr)
-		acpi_os_unmap_memory(elog_addr, elog_size);
+	acpi_os_unmap_memory(extlog_l1_addr, l1_size);
+	acpi_os_unmap_memory(elog_addr, elog_size);
 	release_mem_region(elog_base, elog_size);
 	release_mem_region(l1_dirbase, l1_size);
 	kfree(elog_buf);