| From | Mauro Carvalho Chehab <> | Subject | [PATCH v2 09/41] media: atomisp: hmm_bo: untag user pointers | Date | Sat, 30 May 2020 08:55:26 +0200 |
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The kernel ABI was extended to allow pass tagged user pointers.
Untag the pointers in this function.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> --- drivers/staging/media/atomisp/pci/hmm/hmm_bo.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c b/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c index 492b76c29490..6fce8c95be1d 100644 --- a/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c +++ b/drivers/staging/media/atomisp/pci/hmm/hmm_bo.c @@ -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, -- 2.26.2
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