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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2013-11-14 14:31:46 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-15 09:32:19 +0900
commite90bedbb8a847a0e6debe0e00b6f69b788fca92e (patch)
treedb0527ed2027b15022d86493f30e15ee8e6ad334 /arch/unicore32
parent647f884e67dd920e01046a1ae87aa2c2d315479a (diff)
unicore32: handle pgtable_page_ctor() fail
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/unicore32')
-rw-r--r--arch/unicore32/include/asm/pgalloc.h14
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/unicore32/include/asm/pgalloc.h b/arch/unicore32/include/asm/pgalloc.h
index 0213e373a895..2e02d1356fdf 100644
--- a/arch/unicore32/include/asm/pgalloc.h
+++ b/arch/unicore32/include/asm/pgalloc.h
@@ -51,12 +51,14 @@ pte_alloc_one(struct mm_struct *mm, unsigned long addr)
struct page *pte;
pte = alloc_pages(PGALLOC_GFP, 0);
- if (pte) {
- if (!PageHighMem(pte)) {
- void *page = page_address(pte);
- clean_dcache_area(page, PTRS_PER_PTE * sizeof(pte_t));
- }
- pgtable_page_ctor(pte);
+ if (!pte)
+ return NULL;
+ if (!PageHighMem(pte)) {
+ void *page = page_address(pte);
+ clean_dcache_area(page, PTRS_PER_PTE * sizeof(pte_t));
+ }
+ if (!pgtable_page_ctor(pte)) {
+ __free_page(pte);
}
return pte;