Commit-ID: 06ace26f4e6fcf747e890a39193be811777a048a Gitweb: https://git.kernel.org/tip/06ace26f4e6fcf747e890a39193be811777a048a Author: Waiman Long <long...@redhat.com> AuthorDate: Thu, 22 Mar 2018 15:18:53 -0400 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Fri, 23 Mar 2018 20:18:31 +0100
x86/efi: Free efi_pgd with free_pages() 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 <long...@redhat.com> Signed-off-by: Thomas Gleixner <t...@linutronix.de> Cc: linux-...@vger.kernel.org Cc: Dave Hansen <dave.han...@linux.intel.com> Cc: Ard Biesheuvel <ard.biesheu...@linaro.org> Cc: sta...@vger.kernel.org Link: https://lkml.kernel.org/r/1521746333-19593-1-git-send-email-long...@redhat.com --- arch/x86/platform/efi/efi_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index c310a8284358..f9cfbc0d1f33 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; }