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media: atomisp: hmm_bo: untag user pointers

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The kernel ABI was extended to allow pass tagged user pointers.

Untag the pointers in this function.

Fixes: d93445225c ("uaccess: add noop untagged_addr definition")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2020-05-26 09:45:16 +02:00
parent 08fef4fa94
commit 576680cd01
1 changed files with 3 additions and 0 deletions
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drivers/staging/media/atomisp/pci/hmm/hmm_bo.c
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@ -997,6 +997,9 @@ static int alloc_user_pages(struct hmm_buffer_object *bo,
* Handle frame buffer allocated in other kerenl space driver
* and map to user space
*/
userptr = untagged_addr(userptr);
if (vma->vm_flags & (VM_IO | VM_PFNMAP)) {
page_nr = get_pfnmap_pages(current, current->mm,
(unsigned long)userptr,