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2b1c6b21b5
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also adds support for Raspberry Pi Compute Module 3 (untested). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
108 lines
4.0 KiB
Diff
108 lines
4.0 KiB
Diff
From 8369af719005849271d4c50a87dc6422b83dc276 Mon Sep 17 00:00:00 2001
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From: Matthias Reichl <hias@horus.com>
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Date: Tue, 23 Feb 2016 17:28:23 +0100
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Subject: [PATCH] ASoC: bcm: add missing .owner fields in sound card drivers
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If snd_soc_card.owner is not set the kernel won't do usage refcounting
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and one can remove the card driver module while it's in use (eg playback
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active) - which leads to a kernel crash.
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The missing owner field also prevents ALSA slot ordering
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(options snd slots=module-name1,module-name-2,...) from working with
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the I2S cards as it has no module name to match against.
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Fix these issues by setting the .owner field in the snd_soc_card structs.
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Signed-off-by: Matthias Reichl <hias@horus.com>
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---
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sound/soc/bcm/hifiberry_amp.c | 1 +
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sound/soc/bcm/hifiberry_dac.c | 1 +
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sound/soc/bcm/hifiberry_dacplus.c | 1 +
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sound/soc/bcm/hifiberry_digi.c | 1 +
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sound/soc/bcm/iqaudio-dac.c | 1 +
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sound/soc/bcm/raspidac3.c | 1 +
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sound/soc/bcm/rpi-dac.c | 1 +
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sound/soc/bcm/rpi-proto.c | 1 +
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8 files changed, 8 insertions(+)
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--- a/sound/soc/bcm/hifiberry_amp.c
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+++ b/sound/soc/bcm/hifiberry_amp.c
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@@ -61,6 +61,7 @@ static struct snd_soc_dai_link snd_rpi_h
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static struct snd_soc_card snd_rpi_hifiberry_amp = {
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.name = "snd_rpi_hifiberry_amp",
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+ .owner = THIS_MODULE,
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.dai_link = snd_rpi_hifiberry_amp_dai,
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.num_links = ARRAY_SIZE(snd_rpi_hifiberry_amp_dai),
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};
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--- a/sound/soc/bcm/hifiberry_dac.c
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+++ b/sound/soc/bcm/hifiberry_dac.c
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@@ -63,6 +63,7 @@ static struct snd_soc_dai_link snd_rpi_h
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/* audio machine driver */
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static struct snd_soc_card snd_rpi_hifiberry_dac = {
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.name = "snd_rpi_hifiberry_dac",
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+ .owner = THIS_MODULE,
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.dai_link = snd_rpi_hifiberry_dac_dai,
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.num_links = ARRAY_SIZE(snd_rpi_hifiberry_dac_dai),
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};
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--- a/sound/soc/bcm/hifiberry_dacplus.c
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+++ b/sound/soc/bcm/hifiberry_dacplus.c
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@@ -287,6 +287,7 @@ static struct snd_soc_dai_link snd_rpi_h
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/* audio machine driver */
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static struct snd_soc_card snd_rpi_hifiberry_dacplus = {
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.name = "snd_rpi_hifiberry_dacplus",
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+ .owner = THIS_MODULE,
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.dai_link = snd_rpi_hifiberry_dacplus_dai,
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.num_links = ARRAY_SIZE(snd_rpi_hifiberry_dacplus_dai),
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};
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--- a/sound/soc/bcm/hifiberry_digi.c
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+++ b/sound/soc/bcm/hifiberry_digi.c
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@@ -164,6 +164,7 @@ static struct snd_soc_dai_link snd_rpi_h
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/* audio machine driver */
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static struct snd_soc_card snd_rpi_hifiberry_digi = {
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.name = "snd_rpi_hifiberry_digi",
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+ .owner = THIS_MODULE,
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.dai_link = snd_rpi_hifiberry_digi_dai,
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.num_links = ARRAY_SIZE(snd_rpi_hifiberry_digi_dai),
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};
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--- a/sound/soc/bcm/iqaudio-dac.c
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+++ b/sound/soc/bcm/iqaudio-dac.c
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@@ -77,6 +77,7 @@ static struct snd_soc_dai_link snd_rpi_i
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/* audio machine driver */
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static struct snd_soc_card snd_rpi_iqaudio_dac = {
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.name = "IQaudIODAC",
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+ .owner = THIS_MODULE,
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.dai_link = snd_rpi_iqaudio_dac_dai,
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.num_links = ARRAY_SIZE(snd_rpi_iqaudio_dac_dai),
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};
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--- a/sound/soc/bcm/raspidac3.c
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+++ b/sound/soc/bcm/raspidac3.c
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@@ -128,6 +128,7 @@ static struct snd_soc_dai_link snd_rpi_r
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/* audio machine driver */
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static struct snd_soc_card snd_rpi_raspidac3 = {
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.name = "RaspiDAC Rev.3x HiFi Audio Card",
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+ .owner = THIS_MODULE,
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.dai_link = snd_rpi_raspidac3_dai,
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.num_links = ARRAY_SIZE(snd_rpi_raspidac3_dai),
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};
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--- a/sound/soc/bcm/rpi-dac.c
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+++ b/sound/soc/bcm/rpi-dac.c
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@@ -60,6 +60,7 @@ static struct snd_soc_dai_link snd_rpi_r
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/* audio machine driver */
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static struct snd_soc_card snd_rpi_rpi_dac = {
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.name = "snd_rpi_rpi_dac",
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+ .owner = THIS_MODULE,
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.dai_link = snd_rpi_rpi_dac_dai,
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.num_links = ARRAY_SIZE(snd_rpi_rpi_dac_dai),
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};
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--- a/sound/soc/bcm/rpi-proto.c
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+++ b/sound/soc/bcm/rpi-proto.c
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@@ -91,6 +91,7 @@ static struct snd_soc_dai_link snd_rpi_p
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/* audio machine driver */
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static struct snd_soc_card snd_rpi_proto = {
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.name = "snd_rpi_proto",
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+ .owner = THIS_MODULE,
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.dai_link = snd_rpi_proto_dai,
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.num_links = ARRAY_SIZE(snd_rpi_proto_dai),
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};
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