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[IA64] virt_to_page() can be called with NULL arg

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It does not return NULL when arg is NULL.

Signed-off-by: Alexey Kuznetsov <[email protected]>
Signed-off-by: Kirill Korotaev <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
This commit is contained in:
Kirill Korotaev 2007-02-05 16:20:00 -08:00 • committed by Tony Luck
commit 71120061f2
1 changed files with 2 additions and 1 deletions
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3
include/asm-ia64/pgalloc.h
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@ -137,7 +137,8 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t * pmd_entry, pte_t * pte)
static inline struct page *pte_alloc_one(struct mm_struct *mm,
unsigned long addr)
{
return virt_to_page(pgtable_quicklist_alloc());
void *pg = pgtable_quicklist_alloc();
return pg ? virt_to_page(pg) : NULL;
}
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,