diff options
| author | Trevor Wu <trevor.wu@mediatek.com> | 2023-05-26 12:31:48 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-06-02 15:29:09 +0300 |
| commit | 8ad13cdc92f66333ae475251ae7722313f84e496 (patch) | |
| tree | 0b2cc619500e287d89dc7aa44fcd89518115f935 | |
| parent | c0e7390e6d3f42b9a15a0e72add21facb8e17790 (diff) | |
| download | linux-8ad13cdc92f66333ae475251ae7722313f84e496.tar.xz | |
ASoC: soc-dapm.c: clean up debugfs for freed widget
When a widget is added to dapm via snd_soc_dapm_new_widgets,
dapm_debugfs_add_widget is also called to create a corresponding debugfs
file. However, when a widget is freed by snd_soc_dapm_free_widget, the
corresponding debugfs is not cleared. As a result, the freed widget is
still seen in the dapm directory.
This patch adds dapm_debugfs_free_widget to free the debugfs of a
specified widget, and it's called at snd_soc_dapm_free_widget to clean
up the debugfs for freed widget.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://lore.kernel.org/r/20230526093150.22923-6-trevor.wu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/soc-dapm.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index f2f04ce693a1..c65cc374bb3f 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -2216,6 +2216,16 @@ static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) &dapm_widget_power_fops); } +static void dapm_debugfs_free_widget(struct snd_soc_dapm_widget *w) +{ + struct snd_soc_dapm_context *dapm = w->dapm; + + if (!dapm->debugfs_dapm || !w->name) + return; + + debugfs_lookup_and_remove(w->name, dapm->debugfs_dapm); +} + static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) { debugfs_remove_recursive(dapm->debugfs_dapm); @@ -2232,6 +2242,10 @@ static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) { } +static inline void dapm_debugfs_free_widget(struct snd_soc_dapm_widget *w) +{ +} + static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) { } @@ -2495,6 +2509,8 @@ void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) dapm_free_path(p); } + dapm_debugfs_free_widget(w); + kfree(w->kcontrols); kfree_const(w->name); kfree_const(w->sname); |