From: Lucas Tanure tanureal@opensource.cirrus.com
[ 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@opensource.cirrus.com Link: https://lore.kernel.org/r/20210728104416.636591-1-tanureal@opensource.cirrus... 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,