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| author | Akinobu Mita <mita@fixstars.com> | 2007-05-29 20:46:51 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-06-02 21:01:56 +1000 |
| commit | a4c28ab7445f5ca60e56ffd90edb3e9fc1330b71 (patch) | |
| tree | d7ccd52c688f014c320a55c1b6fa512424b147f3 /include/asm-powerpc/pgalloc-64.h | |
| parent | 66b30922c8a2c880fe61080c5bf87ae6615b9f64 (diff) | |
| download | linux-a4c28ab7445f5ca60e56ffd90edb3e9fc1330b71.tar.gz | |
[POWERPC] Fix return from pte_alloc_one() in out-of-memory case
pte_alloc_one() is expected to return NULL if out of memory. But it returns virt_to_page(NULL), which is not NULL. This fixes it. Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Akinobu Mita <mita@fixstars.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/pgalloc-64.h')
| -rw-r--r-- | include/asm-powerpc/pgalloc-64.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/asm-powerpc/pgalloc-64.h b/include/asm-powerpc/pgalloc-64.h index d9a3a8ca58a1..94d0294341d6 100644 --- a/include/asm-powerpc/pgalloc-64.h +++ b/include/asm-powerpc/pgalloc-64.h @@ -90,7 +90,8 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) { - return virt_to_page(pte_alloc_one_kernel(mm, address)); + pte_t *pte = pte_alloc_one_kernel(mm, address); + return pte ? virt_to_page(pte) : NULL; } static inline void pte_free_kernel(pte_t *pte) |