Re: [PATCH 03/11] ALSA: hda: Add lock around codec->registered flag manipulations

[kernel test robot <lkp@intel.com>]

Hi Takashi,

kernel test robot noticed the following build errors:

[auto build test ERROR on tiwai-sound/for-next]
[also build test ERROR on next-20261008]
[cannot apply to tiwai-sound/for-linus broonie-sound/for-next linus/master v7.3-rc6]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Takashi-Iwai/ALSA-hda-intel-Cancel-delayed-work-at-shutdown-too/20261008-212541
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next
patch link:    https://lore.kernel.org/r/20261008192553.300025-4-tiwai%40suse.de
patch subject: [PATCH 03/11] ALSA: hda: Add lock around codec->registered flag manipulations
config: i386-defconfig (https://download.01.org/0day-ci/archive/20261009/202610092046.7N0li03i-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261009/202610092046.7N0li03i-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610092046.7N0li03i-lkp@intel.com/

All errors (new ones prefixed by >>):

>> sound/hda/common/codec.c:764:18: error: use of undeclared identifier 'bus'
     764 |                 spin_lock_irq(&bus->reg_lock);
         |                                ^~~
   sound/hda/common/codec.c:766:20: error: use of undeclared identifier 'bus'
     766 |                 spin_unlock_irq(&bus->reg_lock);
         |                                  ^~~
   sound/hda/common/codec.c:820:18: error: use of undeclared identifier 'bus'
     820 |                 spin_lock_irq(&bus->reg_lock);
         |                                ^~~
   sound/hda/common/codec.c:822:20: error: use of undeclared identifier 'bus'
     822 |                 spin_unlock_irq(&bus->reg_lock);
         |                                  ^~~
   4 errors generated.


vim +/bus +764 sound/hda/common/codec.c

   753	
   754	/**
   755	 * snd_hda_codec_cleanup_for_unbind - Prepare codec for removal
   756	 * @codec: codec device to cleanup
   757	 */
   758	void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
   759	{
   760		if (codec->core.registered) {
   761			/* pm_runtime_put() is called in snd_hdac_device_exit() */
   762			pm_runtime_get_noresume(hda_codec_dev(codec));
   763			pm_runtime_disable(hda_codec_dev(codec));
 > 764			spin_lock_irq(&bus->reg_lock);
   765			codec->core.registered = false;
   766			spin_unlock_irq(&bus->reg_lock);
   767		}
   768	
   769		snd_hda_codec_disconnect_pcms(codec);
   770		cancel_delayed_work_sync(&codec->jackpoll_work);
   771		if (!codec->in_freeing)
   772			snd_hda_ctls_clear(codec);
   773		codec_release_pcms(codec);
   774		snd_hda_detach_beep_device(codec);
   775		snd_hda_jack_tbl_clear(codec);
   776		codec->proc_widget_hook = NULL;
   777		codec->spec = NULL;
   778	
   779		/* free only driver_pins so that init_pins + user_pins are restored */
   780		snd_array_free(&codec->driver_pins);
   781		snd_array_free(&codec->cvt_setups);
   782		snd_array_free(&codec->spdif_out);
   783		snd_array_free(&codec->verbs);
   784		codec->follower_dig_outs = NULL;
   785		codec->spdif_status_reset = 0;
   786		snd_array_free(&codec->mixers);
   787		snd_array_free(&codec->nids);
   788		remove_conn_list(codec);
   789		snd_hdac_regmap_exit(&codec->core);
   790		codec->configured = 0;
   791		snd_refcount_init(&codec->pcm_ref); /* reset refcount */
   792	}
   793	EXPORT_SYMBOL_GPL(snd_hda_codec_cleanup_for_unbind);
   794	

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