[PATCH AUTOSEL 4.19 1/4] ASoC: wm_adsp: Let soc_cleanup_component_debugfs remove debugfs

[Sasha Levin]

From: Lucas Tanure <tanureal@xxxxxxxxxxxxxxxxxxxxx>

[ 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 <tanureal@xxxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210728104416.636591-1-tanureal@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 02c557e1f779..47a4363ebde9 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -651,7 +651,6 @@ 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,
-- 
2.30.2