[PATCH 02/34] cris: fix potential NULL-pointer dereference

[Kirill A. Shutemov]

Add missing check for memory allocation fail.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Mikael Starvik <starvik@xxxxxxxx>
Cc: Jesper Nilsson <jesper.nilsson@xxxxxxxx>
---
 arch/cris/include/asm/pgalloc.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/cris/include/asm/pgalloc.h b/arch/cris/include/asm/pgalloc.h
index 6da975db11..d9504d38c2 100644
--- a/arch/cris/include/asm/pgalloc.h
+++ b/arch/cris/include/asm/pgalloc.h
@@ -32,6 +32,8 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addres
 {
 	struct page *pte;
 	pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
+	if (!pte)
+		return NULL;
 	pgtable_page_ctor(pte);
 	return pte;
 }
-- 
1.8.4.rc3

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