x86: use early_memremap() in setup.c

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / crash_dump_64.c

diff --git a/arch/x86/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c
index d3e524c845279ffa93af6e09669a370349665341..e90a60ef10c2b641f524844e4902969cdd8235b4 100644 (file)
--- a/arch/x86/kernel/crash_dump_64.c
+++ b/arch/x86/kernel/crash_dump_64.c
@@ -32,14 +32,16 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
                return 0;
 
        vaddr = ioremap(pfn << PAGE_SHIFT, PAGE_SIZE);
+       if (!vaddr)
+               return -ENOMEM;
 
        if (userbuf) {
-               if (copy_to_user(buf, (vaddr + offset), csize)) {
+               if (copy_to_user(buf, vaddr + offset, csize)) {
                        iounmap(vaddr);
                        return -EFAULT;
                }
        } else
-       memcpy(buf, (vaddr + offset), csize);
+               memcpy(buf, vaddr + offset, csize);
 
        iounmap(vaddr);
        return csize;