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x86: handle pgtable_page_ctor() fail 

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Kirill A. Shutemov 2013-11-14 14:31:47 -08:00 committed by Linus Torvalds
parent e90bedbb8a
commit cecbd1b5af
1 changed files with 6 additions and 2 deletions
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8
arch/x86/mm/pgtable.c
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@ -25,8 +25,12 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
struct page *pte;
pte = alloc_pages(__userpte_alloc_gfp, 0);
if (pte)
pgtable_page_ctor(pte);
if (!pte)
return NULL;
if (!pgtable_page_ctor(pte)) {
__free_page(pte);
return NULL;
}
return pte;
}