target/linux/brcm2708/patches-4.19/950-0321-staging-bcm2835-codec-NULL-component-handle-on-queue.patch

   1 From 140c118a9886b0386d748e6aa7cbd8ba9f9b0ede Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Tue, 19 Mar 2019 17:55:09 +0000
   4 Subject: [PATCH] staging: bcm2835-codec: NULL component handle on
   5  queue_setup failure
   6
   7 queue_setup tries creating the relevant MMAL component and configures
   8 the input and output ports as we're expecting to start streaming.
   9 If the port configuration failed then it destroyed the component,
  10 but failed to clear the component handle, therefore release tried
  11 destroying the component again.
  12 Adds some logging should the port config fail as well.
  13
  14 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  15 ---
  16  .../bcm2835-codec/bcm2835-v4l2-codec.c            | 15 +++++++++++++--
  17  1 file changed, 13 insertions(+), 2 deletions(-)
  18
  19 --- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
  20 +++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
  21 @@ -1776,13 +1776,21 @@ static int bcm2835_codec_create_componen
  22
  23         ret = vchiq_mmal_port_set_format(dev->instance,
  24                                          &ctx->component->input[0]);
  25 -       if (ret < 0)
  26 +       if (ret < 0) {
  27 +               v4l2_dbg(1, debug, &dev->v4l2_dev,
  28 +                        "%s: vchiq_mmal_port_set_format ip port failed\n",
  29 +                        __func__);
  30                 goto destroy_component;
  31 +       }
  32
  33         ret = vchiq_mmal_port_set_format(dev->instance,
  34                                          &ctx->component->output[0]);
  35 -       if (ret < 0)
  36 +       if (ret < 0) {
  37 +               v4l2_dbg(1, debug, &dev->v4l2_dev,
  38 +                        "%s: vchiq_mmal_port_set_format op port failed\n",
  39 +                        __func__);
  40                 goto destroy_component;
  41 +       }
  42
  43         if (dev->role == ENCODE) {
  44                 u32 param = 1;
  45 @@ -1812,11 +1820,14 @@ static int bcm2835_codec_create_componen
  46                                  ctx->q_data[V4L2_M2M_DST].sizeimage,
  47                                  ctx->component->output[0].minimum_buffer.size);
  48         }
  49 +       v4l2_dbg(2, debug, &dev->v4l2_dev, "%s: component created as %s\n",
  50 +                __func__, components[dev->role]);
  51
  52         return 0;
  53
  54  destroy_component:
  55         vchiq_mmal_component_finalise(ctx->dev->instance, ctx->component);
  56 +       ctx->component = NULL;
  57
  58         return ret;
  59  }