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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)
downloadlinux-e90bedbb8a847a0e6debe0e00b6f69b788fca92e.tar.gz
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;