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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2013-04-17 12:48:43 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2013-04-24 07:41:41 +0200 |
| commit | 7b3d1c82417b340c73e416db10770379291010ba (patch) | |
| tree | 283529d93400c32f508acc32b1eb0850be940960 /drivers/video/fb-puv3.c | |
| parent | fbdev/controlfb: use vm_iomap_memory() (diff) | |
| download | linux-7b3d1c82417b340c73e416db10770379291010ba.tar.xz linux-7b3d1c82417b340c73e416db10770379291010ba.zip | |
fbdev/fb-puv3: use vm_iomap_memory()
Use vm_iomap_memory() instead of [io_]remap_pfn_range().
vm_iomap_memory() gives us much simpler API to map memory to userspace,
and reduces possibilities for bugs.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Diffstat (limited to 'drivers/video/fb-puv3.c')
| -rw-r--r-- | drivers/video/fb-puv3.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/drivers/video/fb-puv3.c b/drivers/video/fb-puv3.c index 7d106f1f4906..27fc956166fa 100644 --- a/drivers/video/fb-puv3.c +++ b/drivers/video/fb-puv3.c @@ -640,21 +640,9 @@ static int unifb_pan_display(struct fb_var_screeninfo *var, int unifb_mmap(struct fb_info *info, struct vm_area_struct *vma) { - unsigned long size = vma->vm_end - vma->vm_start; - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; - unsigned long pos = info->fix.smem_start + offset; - - if (offset + size > info->fix.smem_len) - return -EINVAL; - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - if (io_remap_pfn_range(vma, vma->vm_start, pos >> PAGE_SHIFT, size, - vma->vm_page_prot)) - return -EAGAIN; - - /* VM_IO | VM_DONTEXPAND | VM_DONTDUMP are set by remap_pfn_range() */ - return 0; + return vm_iomap_memory(vma, info->fix.smem_start, info->fix.smem_len); } static struct fb_ops unifb_ops = { |