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cris: fix potential NULL-pointer dereference

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Add missing check for memory allocation fail.

Signed-off-by: Kirill A. Shutemov <[email protected]>
Cc: Mikael Starvik <[email protected]>
Acked-by: Jesper Nilsson <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Kirill A. Shutemov 2013-11-14 14:31:17 -08:00 • committed by Linus Torvalds
commit 26db39027c
1 changed files with 2 additions and 0 deletions
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arch/cris/include/asm/pgalloc.h
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@ -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;
}