diff options
Diffstat (limited to 'drivers/media/common/videobuf2/videobuf2-memops.c')
| -rw-r--r-- | drivers/media/common/videobuf2/videobuf2-memops.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/media/common/videobuf2/videobuf2-memops.c b/drivers/media/common/videobuf2/videobuf2-memops.c index 6e9e05153f4e..f9a4ec44422e 100644 --- a/drivers/media/common/videobuf2/videobuf2-memops.c +++ b/drivers/media/common/videobuf2/videobuf2-memops.c @@ -26,6 +26,7 @@ * vb2_create_framevec() - map virtual addresses to pfns * @start: Virtual user address where we start mapping * @length: Length of a range to map + * @write: Should we map for writing into the area * * This function allocates and fills in a vector with pfns corresponding to * virtual address range passed in arguments. If pfns have corresponding pages, @@ -34,13 +35,13 @@ * failure. Returned vector needs to be freed via vb2_destroy_pfnvec(). */ struct frame_vector *vb2_create_framevec(unsigned long start, - unsigned long length) + unsigned long length, + bool write) { int ret; unsigned long first, last; unsigned long nr; struct frame_vector *vec; - unsigned int flags = FOLL_FORCE | FOLL_WRITE; first = start >> PAGE_SHIFT; last = (start + length - 1) >> PAGE_SHIFT; @@ -48,7 +49,7 @@ struct frame_vector *vb2_create_framevec(unsigned long start, vec = frame_vector_create(nr); if (!vec) return ERR_PTR(-ENOMEM); - ret = get_vaddr_frames(start & PAGE_MASK, nr, flags, vec); + ret = get_vaddr_frames(start & PAGE_MASK, nr, write, vec); if (ret < 0) goto out_destroy; /* We accept only complete set of PFNs */ |