[PATCH AUTOSEL 5.13 03/12] ASoC: wm_adsp: Let soc_cleanup_component_debugfs remove debugfs
From: Sasha Levin <sashal@kernel.org>
Date: 2021-08-17 00:35:51
Also in:
alsa-devel, lkml
Subsystem:
sound, sound - soc layer / dynamic audio power management (asoc), the rest, wolfson microelectronics drivers · Maintainers:
Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Linus Torvalds
From: Lucas Tanure <redacted> [ Upstream commit acbf58e530416e167c3b323111f4013d9f2b0a7d ] soc_cleanup_component_debugfs will debugfs_remove_recursive the component->debugfs_root, so adsp doesn't need to also remove the same entry. By doing that adsp also creates a race with core component, which causes a NULL pointer dereference Signed-off-by: Lucas Tanure <redacted> Link: https://lore.kernel.org/r/20210728104416.636591-1-tanureal@opensource.cirrus.com (local) Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- sound/soc/codecs/wm_adsp.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index cef05d81c39b..6698b5343974 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c@@ -746,7 +746,6 @@ static void wm_adsp2_init_debugfs(struct wm_adsp *dsp, static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp) { wm_adsp_debugfs_clear(dsp); - debugfs_remove_recursive(dsp->debugfs_root); } #else static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
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2.30.2