On Tue, Sep 28, 2021 at 2:16 PM Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx> wrote: > > We need to always link allocated vb2_dc_buf back to vb2_buffer because > we dereference vb2 in prepare() and finish() callbacks. > > Signed-off-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx> This fixes the breakage from the "videobuf2: support new noncontiguous DMA API" series on the RK3399 Scarlet if the ChromeOS patch that changes min_buffers_needed to 0 [1] is not applied. Since there are other in-tree drivers that have min_buffers_needed=0, I would recommend getting some more testing. ChenYu [1] https://crrev.com/c/3168489
