target/linux/brcm2708/patches-4.4/0164-ASoC-bcm-add-missing-.owner-fields-in-sound-card-dri.patch

   1 From 84c2e063885bb0ae3d5d2ad2e24e7a2bdb5729ae Mon Sep 17 00:00:00 2001
   2 From: Matthias Reichl <hias@horus.com>
   3 Date: Tue, 23 Feb 2016 17:28:23 +0100
   4 Subject: [PATCH 164/170] ASoC: bcm: add missing .owner fields in sound card
   5  drivers
   6
   7 If snd_soc_card.owner is not set the kernel won't do usage refcounting
   8 and one can remove the card driver module while it's in use (eg playback
   9 active) - which leads to a kernel crash.
  10
  11 The missing owner field also prevents ALSA slot ordering
  12 (options snd slots=module-name1,module-name-2,...) from working with
  13 the I2S cards as it has no module name to match against.
  14
  15 Fix these issues by setting the .owner field in the snd_soc_card structs.
  16
  17 Signed-off-by: Matthias Reichl <hias@horus.com>
  18 ---
  19  sound/soc/bcm/hifiberry_amp.c     | 1 +
  20  sound/soc/bcm/hifiberry_dac.c     | 1 +
  21  sound/soc/bcm/hifiberry_dacplus.c | 1 +
  22  sound/soc/bcm/hifiberry_digi.c    | 1 +
  23  sound/soc/bcm/iqaudio-dac.c       | 1 +
  24  sound/soc/bcm/raspidac3.c         | 1 +
  25  sound/soc/bcm/rpi-dac.c           | 1 +
  26  sound/soc/bcm/rpi-proto.c         | 1 +
  27  8 files changed, 8 insertions(+)
  28
  29 --- a/sound/soc/bcm/hifiberry_amp.c
  30 +++ b/sound/soc/bcm/hifiberry_amp.c
  31 @@ -61,6 +61,7 @@ static struct snd_soc_dai_link snd_rpi_h
  32
  33  static struct snd_soc_card snd_rpi_hifiberry_amp = {
  34         .name         = "snd_rpi_hifiberry_amp",
  35 +       .owner        = THIS_MODULE,
  36         .dai_link     = snd_rpi_hifiberry_amp_dai,
  37         .num_links    = ARRAY_SIZE(snd_rpi_hifiberry_amp_dai),
  38  };
  39 --- a/sound/soc/bcm/hifiberry_dac.c
  40 +++ b/sound/soc/bcm/hifiberry_dac.c
  41 @@ -63,6 +63,7 @@ static struct snd_soc_dai_link snd_rpi_h
  42  /* audio machine driver */
  43  static struct snd_soc_card snd_rpi_hifiberry_dac = {
  44         .name         = "snd_rpi_hifiberry_dac",
  45 +       .owner        = THIS_MODULE,
  46         .dai_link     = snd_rpi_hifiberry_dac_dai,
  47         .num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dac_dai),
  48  };
  49 --- a/sound/soc/bcm/hifiberry_dacplus.c
  50 +++ b/sound/soc/bcm/hifiberry_dacplus.c
  51 @@ -287,6 +287,7 @@ static struct snd_soc_dai_link snd_rpi_h
  52  /* audio machine driver */
  53  static struct snd_soc_card snd_rpi_hifiberry_dacplus = {
  54         .name         = "snd_rpi_hifiberry_dacplus",
  55 +       .owner        = THIS_MODULE,
  56         .dai_link     = snd_rpi_hifiberry_dacplus_dai,
  57         .num_links    = ARRAY_SIZE(snd_rpi_hifiberry_dacplus_dai),
  58  };
  59 --- a/sound/soc/bcm/hifiberry_digi.c
  60 +++ b/sound/soc/bcm/hifiberry_digi.c
  61 @@ -164,6 +164,7 @@ static struct snd_soc_dai_link snd_rpi_h
  62  /* audio machine driver */
  63  static struct snd_soc_card snd_rpi_hifiberry_digi = {
  64         .name         = "snd_rpi_hifiberry_digi",
  65 +       .owner        = THIS_MODULE,
  66         .dai_link     = snd_rpi_hifiberry_digi_dai,
  67         .num_links    = ARRAY_SIZE(snd_rpi_hifiberry_digi_dai),
  68  };
  69 --- a/sound/soc/bcm/iqaudio-dac.c
  70 +++ b/sound/soc/bcm/iqaudio-dac.c
  71 @@ -77,6 +77,7 @@ static struct snd_soc_dai_link snd_rpi_i
  72  /* audio machine driver */
  73  static struct snd_soc_card snd_rpi_iqaudio_dac = {
  74         .name         = "IQaudIODAC",
  75 +       .owner        = THIS_MODULE,
  76         .dai_link     = snd_rpi_iqaudio_dac_dai,
  77         .num_links    = ARRAY_SIZE(snd_rpi_iqaudio_dac_dai),
  78  };
  79 --- a/sound/soc/bcm/raspidac3.c
  80 +++ b/sound/soc/bcm/raspidac3.c
  81 @@ -128,6 +128,7 @@ static struct snd_soc_dai_link snd_rpi_r
  82  /* audio machine driver */
  83  static struct snd_soc_card snd_rpi_raspidac3 = {
  84         .name         = "RaspiDAC Rev.3x HiFi Audio Card",
  85 +       .owner        = THIS_MODULE,
  86         .dai_link     = snd_rpi_raspidac3_dai,
  87         .num_links    = ARRAY_SIZE(snd_rpi_raspidac3_dai),
  88  };
  89 --- a/sound/soc/bcm/rpi-dac.c
  90 +++ b/sound/soc/bcm/rpi-dac.c
  91 @@ -60,6 +60,7 @@ static struct snd_soc_dai_link snd_rpi_r
  92  /* audio machine driver */
  93  static struct snd_soc_card snd_rpi_rpi_dac = {
  94         .name         = "snd_rpi_rpi_dac",
  95 +       .owner        = THIS_MODULE,
  96         .dai_link     = snd_rpi_rpi_dac_dai,
  97         .num_links    = ARRAY_SIZE(snd_rpi_rpi_dac_dai),
  98  };
  99 --- a/sound/soc/bcm/rpi-proto.c
 100 +++ b/sound/soc/bcm/rpi-proto.c
 101 @@ -91,6 +91,7 @@ static struct snd_soc_dai_link snd_rpi_p
 102  /* audio machine driver */
 103  static struct snd_soc_card snd_rpi_proto = {
 104         .name           = "snd_rpi_proto",
 105 +       .owner          = THIS_MODULE,
 106         .dai_link       = snd_rpi_proto_dai,
 107         .num_links      = ARRAY_SIZE(snd_rpi_proto_dai),
 108  };