* [PATCH] powerpc: fix virt_to_page() with NULL
@ 2007-05-29 10:46 Akinobu Mita
0 siblings, 0 replies; only message in thread
From: Akinobu Mita @ 2007-05-29 10:46 UTC (permalink / raw)
To: linuxppc-dev; +Cc: Paul Mackerras
pte_alloc_one() is expected to return NULL if out of memory.
But it returns virt_to_page(NULL) and it is not NULL.
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Akinobu Mita <mita@fixstars.com>
---
include/asm-powerpc/pgalloc-64.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: 2.6-rc-ps3/include/asm-powerpc/pgalloc-64.h
===================================================================
--- 2.6-rc-ps3.orig/include/asm-powerpc/pgalloc-64.h
+++ 2.6-rc-ps3/include/asm-powerpc/pgalloc-64.h
@@ -90,7 +90,8 @@ static inline pte_t *pte_alloc_one_kerne
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)
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2007-05-29 10:46 [PATCH] powerpc: fix virt_to_page() with NULL Akinobu Mita
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