linux-kernel - [PATCH 18/34] m32r: handle pgtable_page

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Date:	Thu, 10 Oct 2013 21:05:43 +0300
From:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-arch@...r.kernel.org,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Hirokazu Takata <takata@...ux-m32r.org>
Subject: [PATCH 18/34] m32r: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
Cc: Hirokazu Takata <takata@...ux-m32r.org>
---
 arch/m32r/include/asm/pgalloc.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/m32r/include/asm/pgalloc.h b/arch/m32r/include/asm/pgalloc.h
index ac4208bcc5..2d55a064cc 100644
--- a/arch/m32r/include/asm/pgalloc.h
+++ b/arch/m32r/include/asm/pgalloc.h
@@ -45,7 +45,10 @@ static __inline__ pgtable_t pte_alloc_one(struct mm_struct *mm,
 
 	if (!pte)
 		return NULL;
-	pgtable_page_ctor(pte);
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
+	}
 	return pte;
 }
 
-- 
1.8.4.rc3

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