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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2013-11-14 14:31:34 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-15 09:32:17 +0900 |
| commit | f84c914b986ed2ec4ffaa5672b423b1f6b65519d (patch) | |
| tree | c7bbfffe5499be53b9faf6364a5aeb90bf1ffdbb | |
| parent | 7251ab6b86179f195b3f4b56d57ce9dc7a725409 (diff) | |
| download | op-kernel-dev-f84c914b986ed2ec4ffaa5672b423b1f6b65519d.zip op-kernel-dev-f84c914b986ed2ec4ffaa5672b423b1f6b65519d.tar.gz | |
m68k: handle pgtable_page_ctor() fail
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/m68k/include/asm/mcf_pgalloc.h | 4 | ||||
| -rw-r--r-- | arch/m68k/include/asm/motorola_pgalloc.h | 8 | ||||
| -rw-r--r-- | arch/m68k/include/asm/sun3_pgalloc.h | 5 |
3 files changed, 14 insertions, 3 deletions
diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h index 313f3dd..f9924fb 100644 --- a/arch/m68k/include/asm/mcf_pgalloc.h +++ b/arch/m68k/include/asm/mcf_pgalloc.h @@ -56,6 +56,10 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm, if (!page) return NULL; + if (!pgtable_page_ctor(page)) { + __free_page(page); + return NULL; + } pte = kmap(page); if (pte) { diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h index 2f02f26..24bcba4 100644 --- a/arch/m68k/include/asm/motorola_pgalloc.h +++ b/arch/m68k/include/asm/motorola_pgalloc.h @@ -29,18 +29,22 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address) { - struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); + struct page *page; pte_t *pte; + page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); if(!page) return NULL; + if (!pgtable_page_ctor(page)) { + __free_page(page); + return NULL; + } pte = kmap(page); __flush_page_to_ram(pte); flush_tlb_kernel_page(pte); nocache_page(pte); kunmap(page); - pgtable_page_ctor(page); return page; } diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h index 48d80d5..f868506 100644 --- a/arch/m68k/include/asm/sun3_pgalloc.h +++ b/arch/m68k/include/asm/sun3_pgalloc.h @@ -59,7 +59,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, return NULL; clear_highpage(page); - pgtable_page_ctor(page); + if (!pgtable_page_ctor(page)) { + __free_page(page); + return NULL; + } return page; } |
