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-rw-r--r--kernel/resource.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 7fec0e427234..6aac5c60b25d 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -17,6 +17,7 @@
17#include <linux/proc_fs.h> 17#include <linux/proc_fs.h>
18#include <linux/seq_file.h> 18#include <linux/seq_file.h>
19#include <linux/device.h> 19#include <linux/device.h>
20#include <linux/pfn.h>
20#include <asm/io.h> 21#include <asm/io.h>
21 22
22 23
@@ -849,7 +850,8 @@ int iomem_map_sanity_check(resource_size_t addr, unsigned long size)
849 continue; 850 continue;
850 if (p->end < addr) 851 if (p->end < addr)
851 continue; 852 continue;
852 if (p->start <= addr && (p->end >= addr + size - 1)) 853 if (PFN_DOWN(p->start) <= PFN_DOWN(addr) &&
854 PFN_DOWN(p->end) >= PFN_DOWN(addr + size - 1))
853 continue; 855 continue;
854 printk(KERN_WARNING "resource map sanity check conflict: " 856 printk(KERN_WARNING "resource map sanity check conflict: "
855 "0x%llx 0x%llx 0x%llx 0x%llx %s\n", 857 "0x%llx 0x%llx 0x%llx 0x%llx %s\n",