Merge tag 'v3.9' into v4l_for_linus

[firefly-linux-kernel-4.4.55.git] / drivers / char / hpet.c

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index fe6d4be4829600d9c6e44078f95ddb65b84ba957..d784650d14f0d113c5d852e47d9dd676741e3b4f 100644 (file)
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -373,26 +373,14 @@ static int hpet_mmap(struct file *file, struct vm_area_struct *vma)
        struct hpet_dev *devp;
        unsigned long addr;
 
-       if (((vma->vm_end - vma->vm_start) != PAGE_SIZE) || vma->vm_pgoff)
-               return -EINVAL;
-
        devp = file->private_data;
        addr = devp->hd_hpets->hp_hpet_phys;
 
        if (addr & (PAGE_SIZE - 1))
                return -ENOSYS;
 
-       vma->vm_flags |= VM_IO;
        vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-
-       if (io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT,
-                                       PAGE_SIZE, vma->vm_page_prot)) {
-               printk(KERN_ERR "%s: io_remap_pfn_range failed\n",
-                       __func__);
-               return -EAGAIN;
-       }
-
-       return 0;
+       return vm_iomap_memory(vma, addr, PAGE_SIZE);
 #else
        return -ENOSYS;
 #endif
@@ -1041,7 +1029,7 @@ static int hpet_acpi_add(struct acpi_device *device)
        return hpet_alloc(&data);
 }
 
-static int hpet_acpi_remove(struct acpi_device *device, int type)
+static int hpet_acpi_remove(struct acpi_device *device)
 {
        /* XXX need to unregister clocksource, dealloc mem, etc */
        return -EINVAL;