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From 2508082b19a36af8ad56d401c910362b4d54ffca Mon Sep 17 00:00:00 2001
From: Matthias Reichl <hias@horus.com>
Date: Tue, 23 Feb 2016 17:28:23 +0100
Subject: [PATCH] ASoC: bcm: add missing .owner fields in sound card drivers
If snd_soc_card.owner is not set the kernel won't do usage refcounting
and one can remove the card driver module while it's in use (eg playback
active) - which leads to a kernel crash.
The missing owner field also prevents ALSA slot ordering
(options snd slots=module-name1,module-name-2,...) from working with
the I2S cards as it has no module name to match against.
Fix these issues by setting the .owner field in the snd_soc_card structs.
Signed-off-by: Matthias Reichl <hias@horus.com>
---
sound/soc/bcm/hifiberry_amp.c | 1 +
sound/soc/bcm/hifiberry_dac.c | 1 +
sound/soc/bcm/hifiberry_dacplus.c | 1 +
sound/soc/bcm/hifiberry_digi.c | 1 +
sound/soc/bcm/iqaudio-dac.c | 1 +
sound/soc/bcm/raspidac3.c | 1 +
sound/soc/bcm/rpi-dac.c | 1 +
sound/soc/bcm/rpi-proto.c | 1 +
8 files changed, 8 insertions(+)
--- a/sound/soc/bcm/hifiberry_amp.c
+++ b/sound/soc/bcm/hifiberry_amp.c
@@ -61,6 +61,7 @@ static struct snd_soc_dai_link snd_rpi_h
static struct snd_soc_card snd_rpi_hifiberry_amp = {
.name = "snd_rpi_hifiberry_amp",
+ .owner = THIS_MODULE,
.dai_link = snd_rpi_hifiberry_amp_dai,
.num_links = ARRAY_SIZE(snd_rpi_hifiberry_amp_dai),
};
--- a/sound/soc/bcm/hifiberry_dac.c
+++ b/sound/soc/bcm/hifiberry_dac.c
@@ -63,6 +63,7 @@ static struct snd_soc_dai_link snd_rpi_h
/* audio machine driver */
static struct snd_soc_card snd_rpi_hifiberry_dac = {
.name = "snd_rpi_hifiberry_dac",
+ .owner = THIS_MODULE,
.dai_link = snd_rpi_hifiberry_dac_dai,
.num_links = ARRAY_SIZE(snd_rpi_hifiberry_dac_dai),
};
--- a/sound/soc/bcm/hifiberry_dacplus.c
+++ b/sound/soc/bcm/hifiberry_dacplus.c
@@ -287,6 +287,7 @@ static struct snd_soc_dai_link snd_rpi_h
/* audio machine driver */
static struct snd_soc_card snd_rpi_hifiberry_dacplus = {
.name = "snd_rpi_hifiberry_dacplus",
+ .owner = THIS_MODULE,
.dai_link = snd_rpi_hifiberry_dacplus_dai,
.num_links = ARRAY_SIZE(snd_rpi_hifiberry_dacplus_dai),
};
--- a/sound/soc/bcm/hifiberry_digi.c
+++ b/sound/soc/bcm/hifiberry_digi.c
@@ -164,6 +164,7 @@ static struct snd_soc_dai_link snd_rpi_h
/* audio machine driver */
static struct snd_soc_card snd_rpi_hifiberry_digi = {
.name = "snd_rpi_hifiberry_digi",
+ .owner = THIS_MODULE,
.dai_link = snd_rpi_hifiberry_digi_dai,
.num_links = ARRAY_SIZE(snd_rpi_hifiberry_digi_dai),
};
--- a/sound/soc/bcm/iqaudio-dac.c
+++ b/sound/soc/bcm/iqaudio-dac.c
@@ -77,6 +77,7 @@ static struct snd_soc_dai_link snd_rpi_i
/* audio machine driver */
static struct snd_soc_card snd_rpi_iqaudio_dac = {
.name = "IQaudIODAC",
+ .owner = THIS_MODULE,
.dai_link = snd_rpi_iqaudio_dac_dai,
.num_links = ARRAY_SIZE(snd_rpi_iqaudio_dac_dai),
};
--- a/sound/soc/bcm/raspidac3.c
+++ b/sound/soc/bcm/raspidac3.c
@@ -128,6 +128,7 @@ static struct snd_soc_dai_link snd_rpi_r
/* audio machine driver */
static struct snd_soc_card snd_rpi_raspidac3 = {
.name = "RaspiDAC Rev.3x HiFi Audio Card",
+ .owner = THIS_MODULE,
.dai_link = snd_rpi_raspidac3_dai,
.num_links = ARRAY_SIZE(snd_rpi_raspidac3_dai),
};
--- a/sound/soc/bcm/rpi-dac.c
+++ b/sound/soc/bcm/rpi-dac.c
@@ -60,6 +60,7 @@ static struct snd_soc_dai_link snd_rpi_r
/* audio machine driver */
static struct snd_soc_card snd_rpi_rpi_dac = {
.name = "snd_rpi_rpi_dac",
+ .owner = THIS_MODULE,
.dai_link = snd_rpi_rpi_dac_dai,
.num_links = ARRAY_SIZE(snd_rpi_rpi_dac_dai),
};
--- a/sound/soc/bcm/rpi-proto.c
+++ b/sound/soc/bcm/rpi-proto.c
@@ -91,6 +91,7 @@ static struct snd_soc_dai_link snd_rpi_p
/* audio machine driver */
static struct snd_soc_card snd_rpi_proto = {
.name = "snd_rpi_proto",
+ .owner = THIS_MODULE,
.dai_link = snd_rpi_proto_dai,
.num_links = ARRAY_SIZE(snd_rpi_proto_dai),
};
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