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arm: handle pgtable_page_ctor() fail 

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Russell King <linux@arm.linux.org.uk>
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 14:31:26 -08:00 committed by Linus Torvalds
parent ca6ec3bbaa
commit affce5089a
1 changed files with 7 additions and 5 deletions
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12
arch/arm/include/asm/pgalloc.h
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@ -102,12 +102,14 @@ pte_alloc_one(struct mm_struct *mm, unsigned long addr)
#else
pte = alloc_pages(PGALLOC_GFP, 0);
#endif
if (pte) {
if (!PageHighMem(pte))
clean_pte_table(page_address(pte));
pgtable_page_ctor(pte);
if (!pte)
return NULL;
if (!PageHighMem(pte))
clean_pte_table(page_address(pte));
if (!pgtable_page_ctor(pte)) {
__free_page(pte);
return NULL;
}
return pte;
}