renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-17 17:53:56 +08:00
Code

fbdev/ps3fb: use vm_iomap_memory()

Browse Source 
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>
This commit is contained in:
Tomi Valkeinen 2013-04-18 07:52:42 +03:00
parent c84deb9d61
commit 11bd5933ab
1 changed files with 6 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/video/ps3fb.c
View File

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