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author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2020-02-19 07:56:52 +0100 |
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committer | Mark Brown <broonie@kernel.org> | 2020-02-24 22:18:32 +0100 |
commit | 52645e332d227a3d3cd345e97a10d99b7e80fae4 (patch) | |
tree | e876e98d524416e28e8d53598555a3b83f82d6a5 /sound/soc/soc-pcm.c | |
parent | ASoC: soc-pcm: merge dpcm_run_new/old_update() into dpcm_fe_runtime_update() (diff) | |
download | linux-52645e332d227a3d3cd345e97a10d99b7e80fae4.tar.xz linux-52645e332d227a3d3cd345e97a10d99b7e80fae4.zip |
ASoC: soc-pcm: move dpcm_path_put() to soc-pcm.c
dpcm_path_put() (A) is calling kfree(*list).
The freed list is created by dapm_widget_list_create() (B) which is called
from snd_soc_dapm_dai_get_connected_widgets() (C) which is called from
dpcm_path_get() (D).
(B) dapm_widget_list_create(**list, ...)
{
...
=> *list = kzalloc();
...
}
(C) snd_soc_dapm_dai_get_connected_widgets(..., **list, ...)
{
...
dapm_widget_list_create(list, ...);
...
}
(D) dpcm_path_get(..., **list)
{
...
snd_soc_dapm_dai_get_connected_widgets(..., list, ...);
...
}
(A) dpcm_path_put(**list)
{
=> kfree(*list);
}
This kind of unbalance code is very difficult to read/understand.
To avoid this issue, this patch adds each missing paired function
dapm_widget_list_free() for dapm_widget_list_create() (B), and
snd_soc_dapm_dai_free_widgets() for snd_soc_dapm_dai_get_connected_widgets() (C).
This patch uses these, and moves dpcm_path_put() next to dpcm_path_get().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a75fjc9q.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-pcm.c')
-rw-r--r-- | sound/soc/soc-pcm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 1bf2db1732bf..3b3b32923783 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1302,6 +1302,11 @@ int dpcm_path_get(struct snd_soc_pcm_runtime *fe, return paths; } +void dpcm_path_put(struct snd_soc_dapm_widget_list **list) +{ + snd_soc_dapm_dai_free_widgets(list); +} + static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, struct snd_soc_dapm_widget_list **list_) { |