This is a note to let you know that I've just added the patch titled
ASoC: codecs: wcd938x: fix resource leaks on component remove
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-codecs-wcd938x-fix-resource-leaks-on-component-remove.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a3406f87775fee986876e03f93a84385f54d5999 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
Date: Wed, 5 Jul 2023 14:30:14 +0200
Subject: ASoC: codecs: wcd938x: fix resource leaks on component remove
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
commit a3406f87775fee986876e03f93a84385f54d5999 upstream.
Make sure to release allocated resources on component probe failure and
on remove.
This is specifically needed to allow probe deferrals of the sound card
which otherwise fails when reprobing the codec component:
snd-sc8280xp sound: ASoC: failed to instantiate card -517
genirq: Flags mismatch irq 289. 00002001 (HPHR PDM WD INT) vs. 00002001 (HPHR PDM WD INT)
wcd938x_codec audio-codec: Failed to request HPHR WD interrupt (-16)
genirq: Flags mismatch irq 290. 00002001 (HPHL PDM WD INT) vs. 00002001 (HPHL PDM WD INT)
wcd938x_codec audio-codec: Failed to request HPHL WD interrupt (-16)
genirq: Flags mismatch irq 291. 00002001 (AUX PDM WD INT) vs. 00002001 (AUX PDM WD INT)
wcd938x_codec audio-codec: Failed to request Aux WD interrupt (-16)
genirq: Flags mismatch irq 292. 00002001 (mbhc sw intr) vs. 00002001 (mbhc sw intr)
wcd938x_codec audio-codec: Failed to request mbhc interrupts -16
Fixes: 8d78602aa87a ("ASoC: codecs: wcd938x: add basic driver")
Cc: stable@xxxxxxxxxxxxxxx # 5.14
Cc: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230705123018.30903-5-johan+linaro@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/wcd938x.c | 55 +++++++++++++++++++++++++++++++++++++++------
1 file changed, 48 insertions(+), 7 deletions(-)
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -2633,6 +2633,14 @@ static int wcd938x_mbhc_init(struct snd_
return 0;
}
+
+static void wcd938x_mbhc_deinit(struct snd_soc_component *component)
+{
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+
+ wcd_mbhc_deinit(wcd938x->wcd_mbhc);
+}
+
/* END MBHC */
static const struct snd_kcontrol_new wcd938x_snd_controls[] = {
@@ -3113,20 +3121,26 @@ static int wcd938x_soc_codec_probe(struc
ret = request_threaded_irq(wcd938x->hphr_pdm_wd_int, NULL, wcd938x_wd_handle_irq,
IRQF_ONESHOT | IRQF_TRIGGER_RISING,
"HPHR PDM WD INT", wcd938x);
- if (ret)
+ if (ret) {
dev_err(dev, "Failed to request HPHR WD interrupt (%d)\n", ret);
+ goto err_free_clsh_ctrl;
+ }
ret = request_threaded_irq(wcd938x->hphl_pdm_wd_int, NULL, wcd938x_wd_handle_irq,
IRQF_ONESHOT | IRQF_TRIGGER_RISING,
"HPHL PDM WD INT", wcd938x);
- if (ret)
+ if (ret) {
dev_err(dev, "Failed to request HPHL WD interrupt (%d)\n", ret);
+ goto err_free_hphr_pdm_wd_int;
+ }
ret = request_threaded_irq(wcd938x->aux_pdm_wd_int, NULL, wcd938x_wd_handle_irq,
IRQF_ONESHOT | IRQF_TRIGGER_RISING,
"AUX PDM WD INT", wcd938x);
- if (ret)
+ if (ret) {
dev_err(dev, "Failed to request Aux WD interrupt (%d)\n", ret);
+ goto err_free_hphl_pdm_wd_int;
+ }
/* Disable watchdog interrupt for HPH and AUX */
disable_irq_nosync(wcd938x->hphr_pdm_wd_int);
@@ -3141,7 +3155,7 @@ static int wcd938x_soc_codec_probe(struc
dev_err(component->dev,
"%s: Failed to add snd ctrls for variant: %d\n",
__func__, wcd938x->variant);
- goto err;
+ goto err_free_aux_pdm_wd_int;
}
break;
case WCD9385:
@@ -3151,7 +3165,7 @@ static int wcd938x_soc_codec_probe(struc
dev_err(component->dev,
"%s: Failed to add snd ctrls for variant: %d\n",
__func__, wcd938x->variant);
- goto err;
+ goto err_free_aux_pdm_wd_int;
}
break;
default:
@@ -3159,12 +3173,38 @@ static int wcd938x_soc_codec_probe(struc
}
ret = wcd938x_mbhc_init(component);
- if (ret)
+ if (ret) {
dev_err(component->dev, "mbhc initialization failed\n");
-err:
+ goto err_free_aux_pdm_wd_int;
+ }
+
+ return 0;
+
+err_free_aux_pdm_wd_int:
+ free_irq(wcd938x->aux_pdm_wd_int, wcd938x);
+err_free_hphl_pdm_wd_int:
+ free_irq(wcd938x->hphl_pdm_wd_int, wcd938x);
+err_free_hphr_pdm_wd_int:
+ free_irq(wcd938x->hphr_pdm_wd_int, wcd938x);
+err_free_clsh_ctrl:
+ wcd_clsh_ctrl_free(wcd938x->clsh_info);
+
return ret;
}
+static void wcd938x_soc_codec_remove(struct snd_soc_component *component)
+{
+ struct wcd938x_priv *wcd938x = snd_soc_component_get_drvdata(component);
+
+ wcd938x_mbhc_deinit(component);
+
+ free_irq(wcd938x->aux_pdm_wd_int, wcd938x);
+ free_irq(wcd938x->hphl_pdm_wd_int, wcd938x);
+ free_irq(wcd938x->hphr_pdm_wd_int, wcd938x);
+
+ wcd_clsh_ctrl_free(wcd938x->clsh_info);
+}
+
static int wcd938x_codec_set_jack(struct snd_soc_component *comp,
struct snd_soc_jack *jack, void *data)
{
@@ -3181,6 +3221,7 @@ static int wcd938x_codec_set_jack(struct
static const struct snd_soc_component_driver soc_codec_dev_wcd938x = {
.name = "wcd938x_codec",
.probe = wcd938x_soc_codec_probe,
+ .remove = wcd938x_soc_codec_remove,
.controls = wcd938x_snd_controls,
.num_controls = ARRAY_SIZE(wcd938x_snd_controls),
.dapm_widgets = wcd938x_dapm_widgets,
Patches currently in stable-queue which might be from johan+linaro@xxxxxxxxxx are
queue-6.4/asoc-codecs-wcd938x-fix-missing-mbhc-init-error-handling.patch
queue-6.4/asoc-codecs-wcd938x-fix-resource-leaks-on-component-remove.patch
queue-6.4/asoc-qdsp6-audioreach-fix-topology-probe-deferral.patch
queue-6.4/asoc-codecs-wcd938x-fix-missing-clsh-ctrl-error-handling.patch
queue-6.4/asoc-codecs-wcd938x-fix-soundwire-initialisation-race.patch
queue-6.4/asoc-codecs-wcd934x-fix-resource-leaks-on-component-remove.patch
queue-6.4/asoc-codecs-wcd938x-fix-codec-initialisation-race.patch
queue-6.4/asoc-codecs-wcd-mbhc-v2-fix-resource-leaks-on-component-remove.patch
