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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2013-11-14 14:31:17 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-15 09:32:15 +0900
commit26db39027c00744107acf184527010a1e05907e7 (patch)
tree83ca296174827c23f8ce7c0e6053431f870ed2e9
parent09ef4939850aa81e3822b5dfb9ba2ada5e565816 (diff)
cris: fix potential NULL-pointer dereference
Add missing check for memory allocation fail. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mikael Starvik <starvik@axis.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/cris/include/asm/pgalloc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/cris/include/asm/pgalloc.h b/arch/cris/include/asm/pgalloc.h
index 6da975db112f..d9504d38c276 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;
}