On 02/20/2016 08:44 PM, Robert Jarzmik wrote: > In the conversion to regmap, I assumed that the 2 following functions > was working symetrically: > - snd_soc_codec_init_regmap() > - snd_soc_codec_exit_regmap(codec) > > As a mater of fact with the current code the regmap is freed twice > because of the devm_() call: > (mutex_lock) from (debugfs_remove_recursive+0x50/0x1d0) > (debugfs_remove_recursive) from (regmap_debugfs_exit+0x1c/0xd4) > (regmap_debugfs_exit) from (regmap_exit+0x28/0xc8) > (regmap_exit) from (release_nodes+0x18c/0x204) > (release_nodes) from (device_release+0x18/0x90) > (device_release) from (kobject_release+0x90/0x1bc) > (kobject_release) from (wm9713_soc_remove+0x1c/0x24) > (wm9713_soc_remove) from (soc_remove_component+0x50/0x7c) > (soc_remove_component) from (soc_remove_dai_links+0x118/0x228) > (soc_remove_dai_links) from (snd_soc_register_card+0x4e4/0xdd4) > (snd_soc_register_card) from (devm_snd_soc_register_card+0x34/0x70) > > Fix this by removing the doubled regmap free. The correct fix is to use the non devm variant of regmap_init_ac97() in this case. Device managed functions should only be used from inside a struct device probe function. - Lars _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
