From a94eaccefea1186947c5c5451fcae2245dd7e714 Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Wed, 17 Jun 2020 11:41:44 -0500
Subject: [PATCH] ASoC: hdac_hda: fix memleak with regmap not freed on remove
Git-commit: a94eaccefea1186947c5c5451fcae2245dd7e714
Patch-mainline: v5.8-rc3
References: jsc#SLE-16518
kmemleak throws error reports on module load/unload tests, add
snd_hdac_regmap_exit() in .remove().
While we are at it, also fix the error handling flow in .probe() to
use snd_hdac_regmap_exit() if needed.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200617164144.17859-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/codecs/hdac_hda.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/sound/soc/codecs/hdac_hda.c b/sound/soc/codecs/hdac_hda.c
index de003acb1951..473efe9ef998 100644
--- a/sound/soc/codecs/hdac_hda.c
+++ b/sound/soc/codecs/hdac_hda.c
@@ -441,13 +441,13 @@ static int hdac_hda_codec_probe(struct snd_soc_component *component)
ret = snd_hda_codec_set_name(hcodec, hcodec->preset->name);
if (ret < 0) {
dev_err(&hdev->dev, "name failed %s\n", hcodec->preset->name);
- goto error;
+ goto error_pm;
}
ret = snd_hdac_regmap_init(&hcodec->core);
if (ret < 0) {
dev_err(&hdev->dev, "regmap init failed\n");
- goto error;
+ goto error_pm;
}
patch = (hda_codec_patch_t)hcodec->preset->driver_data;
@@ -455,7 +455,7 @@ static int hdac_hda_codec_probe(struct snd_soc_component *component)
ret = patch(hcodec);
if (ret < 0) {
dev_err(&hdev->dev, "patch failed %d\n", ret);
- goto error;
+ goto error_regmap;
}
} else {
dev_dbg(&hdev->dev, "no patch file found\n");
@@ -467,7 +467,7 @@ static int hdac_hda_codec_probe(struct snd_soc_component *component)
ret = snd_hda_codec_parse_pcms(hcodec);
if (ret < 0) {
dev_err(&hdev->dev, "unable to map pcms to dai %d\n", ret);
- goto error;
+ goto error_regmap;
}
/* HDMI controls need to be created in machine drivers */
@@ -476,7 +476,7 @@ static int hdac_hda_codec_probe(struct snd_soc_component *component)
if (ret < 0) {
dev_err(&hdev->dev, "unable to create controls %d\n",
ret);
- goto error;
+ goto error_regmap;
}
}
@@ -496,7 +496,9 @@ static int hdac_hda_codec_probe(struct snd_soc_component *component)
return 0;
-error:
+error_regmap:
+ snd_hdac_regmap_exit(hdev);
+error_pm:
pm_runtime_put(&hdev->dev);
error_no_pm:
snd_hdac_ext_bus_link_put(hdev->bus, hlink);
@@ -518,6 +520,8 @@ static void hdac_hda_codec_remove(struct snd_soc_component *component)
pm_runtime_disable(&hdev->dev);
snd_hdac_ext_bus_link_put(hdev->bus, hlink);
+
+ snd_hdac_regmap_exit(hdev);
}
static const struct snd_soc_dapm_route hdac_hda_dapm_routes[] = {
--
2.16.4