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fbdev/ps3fb: 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: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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c84deb9d61
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1 changed files with 6 additions and 12 deletions
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@ -705,21 +705,15 @@ static int ps3fb_pan_display(struct fb_var_screeninfo *var,
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static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
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{
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unsigned long size, offset;
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int r;
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size = vma->vm_end - vma->vm_start;
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offset = vma->vm_pgoff << PAGE_SHIFT;
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if (offset + size > info->fix.smem_len)
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return -EINVAL;
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offset += info->fix.smem_start;
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if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
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size, vma->vm_page_prot))
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return -EAGAIN;
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r = vm_iomap_memory(vma, info->fix.smem_start, info->fix.smem_len);
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dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
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offset, vma->vm_start);
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return 0;
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info->fix.smem_start + vma->vm_pgoff << PAGE_SHIFT,
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vma->vm_start);
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return r;
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}
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/*
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