Commit a4c28ab7 authored by Akinobu Mita's avatar Akinobu Mita Committed by Paul Mackerras

[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: default avatarAkinobu Mita <mita@fixstars.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 66b30922
...@@ -90,7 +90,8 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, ...@@ -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, static inline struct page *pte_alloc_one(struct mm_struct *mm,
unsigned long address) 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) static inline void pte_free_kernel(pte_t *pte)
......
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