diff options
Diffstat (limited to 'arch/x86/mm/pat.c')
| -rw-r--r-- | arch/x86/mm/pat.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index a885a1019b8a..749766c3c5cd 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c | |||
| @@ -449,7 +449,8 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, | |||
| 449 | if (retval < 0) | 449 | if (retval < 0) |
| 450 | return 0; | 450 | return 0; |
| 451 | 451 | ||
| 452 | if (pfn <= max_pfn_mapped && | 452 | if (((pfn <= max_low_pfn_mapped) || |
| 453 | (pfn >= (1UL<<(32 - PAGE_SHIFT)) && pfn <= max_pfn_mapped)) && | ||
| 453 | ioremap_change_attr((unsigned long)__va(offset), size, flags) < 0) { | 454 | ioremap_change_attr((unsigned long)__va(offset), size, flags) < 0) { |
| 454 | free_memtype(offset, offset + size); | 455 | free_memtype(offset, offset + size); |
| 455 | printk(KERN_INFO | 456 | printk(KERN_INFO |