[tiwai-sound:for-next 34/51] sound/usb/mixer_scarlett2.c:3690 scarlett2_ag_target_ctl_get() error: uninitialized symbol 'err'.

[tiwai-sound:for-next 34/51] sound/usb/mixer_scarlett2.c:3690 scarlett2_ag_target_ctl_get() error: uninitialized symbol 'err'.

[Dan Carpenter]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next
head:   32cb23a0f911317cdb5030035e49a204aa86fef5
commit: e30ea5340c25d41484d551f61d8c93106989019b [34/51] ALSA: scarlett2: Add autogain target controls
config: csky-randconfig-r081-20240420 (https://download.01.org/0day-ci/archive/20240420/202404201509.mWdaL3xF-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 13.2.0

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>
| Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
| Closes: https://lore.kernel.org/r/202404201509.mWdaL3xF-lkp@intel.com/

New smatch warnings:
sound/usb/mixer_scarlett2.c:3690 scarlett2_ag_target_ctl_get() error: uninitialized symbol 'err'.

vim +/err +3690 sound/usb/mixer_scarlett2.c

e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3665  static int scarlett2_ag_target_ctl_get(
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3666  	struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol)
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3667  {
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3668  	struct usb_mixer_elem_info *elem = kctl->private_data;
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3669  	struct usb_mixer_interface *mixer = elem->head.mixer;
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3670  	struct scarlett2_data *private = mixer->private_data;
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3671  	int err;
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3672  
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3673  	mutex_lock(&private->data_mutex);
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3674  
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3675  	if (private->hwdep_in_use) {
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3676  		err = -EBUSY;
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3677  		goto unlock;
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3678  	}
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3679  
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3680  	if (private->autogain_updated) {
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3681  		err = scarlett2_update_autogain(mixer);
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3682  		if (err < 0)
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3683  			goto unlock;
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3684  	}

err uninitialized on else path.

e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3685  
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3686  	ucontrol->value.integer.value[0] = private->ag_targets[elem->control];
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3687  
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3688  unlock:
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3689  	mutex_unlock(&private->data_mutex);
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13 @3690  	return err;
e30ea5340c25d41 Geoffrey D. Bennett 2024-03-13  3691  }

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