From 89c5a2d34bda58319e3075e8e7dd727ea25a435c Mon Sep 17 00:00:00 2001
From: Pan Bian <bianpan2016@163.com>
Date: Wed, 6 Dec 2017 09:50:09 +0000
Subject: [PATCH] efi/esrt: Use memunmap() instead of kfree() to free the remapping
Git-commit: 89c5a2d34bda58319e3075e8e7dd727ea25a435c
Patch-mainline: v4.15-rc3
References: bsc#1051510

The remapping result of memremap() should be freed with memunmap(), not kfree().

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: <stable@vger.kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20171206095010.24170-3-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/firmware/efi/esrt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/firmware/efi/esrt.c
+++ b/drivers/firmware/efi/esrt.c
@@ -431,7 +431,7 @@ err_remove_group:
 err_remove_esrt:
 	kobject_put(esrt_kobj);
 err:
-	kfree(esrt);
+	memunmap(esrt);
 	esrt = NULL;
 	return error;
 }