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| author | Waiman Long <longman@redhat.com> | 2018-03-22 15:18:53 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-28 18:24:46 +0200 |
| commit | b08952bbc1712d76c2d63486252073c0406f911f (patch) | |
| tree | 655efc1937ff87cfa37672190343e4e0d26b667b | |
| parent | 373ccbd6eb034834a8b58fc1b7836cf25adb5c37 (diff) | |
| download | linux-exynos-b08952bbc1712d76c2d63486252073c0406f911f.tar.gz linux-exynos-b08952bbc1712d76c2d63486252073c0406f911f.tar.bz2 linux-exynos-b08952bbc1712d76c2d63486252073c0406f911f.zip | |
x86/efi: Free efi_pgd with free_pages()
commit 06ace26f4e6fcf747e890a39193be811777a048a upstream.
The efi_pgd is allocated as PGD_ALLOCATION_ORDER pages and therefore must
also be freed as PGD_ALLOCATION_ORDER pages with free_pages().
Fixes: d9e9a6418065 ("x86/mm/pti: Allocate a separate user PGD")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1521746333-19593-1-git-send-email-longman@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/x86/platform/efi/efi_64.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index ad5d9538f0f9..f7af598c4f55 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -227,7 +227,7 @@ int __init efi_alloc_page_tables(void) if (!pud) { if (CONFIG_PGTABLE_LEVELS > 4) free_page((unsigned long) pgd_page_vaddr(*pgd)); - free_page((unsigned long)efi_pgd); + free_pages((unsigned long)efi_pgd, PGD_ALLOCATION_ORDER); return -ENOMEM; } |