fixed some mistakes
This commit is contained in:
		@@ -490,17 +490,17 @@ vol_perc(const char *snd_card)
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	snd_mixer_selem_id_t *s_elem;
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						snd_mixer_selem_id_t *s_elem;
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	snd_mixer_open(&handle, 0);
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						snd_mixer_open(&handle, 0);
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	snd_mixer_attach(handle, snd_card);
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						snd_mixer_attach(handle, "default");
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	snd_mixer_selem_register(handle, NULL, NULL);
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						snd_mixer_selem_register(handle, NULL, NULL);
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	snd_mixer_load(handle);
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						snd_mixer_load(handle);
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	snd_mixer_selem_id_malloc(&s_elem);
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						snd_mixer_selem_id_malloc(&s_elem);
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	snd_mixer_selem_id_set_name(s_elem, "Master");
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						snd_mixer_selem_id_set_name(s_elem, snd_card);
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	elem = snd_mixer_find_selem(handle, s_elem);
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						elem = snd_mixer_find_selem(handle, s_elem);
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	if (elem == NULL) {
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						if (elem == NULL) {
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		snd_mixer_selem_id_free(s_elem);
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							snd_mixer_selem_id_free(s_elem);
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		snd_mixer_close(handle);
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							snd_mixer_close(handle);
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		perror("alsa error: ");
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							perror("alsa error");
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		return smprintf(UNKNOWN_STR);
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							return smprintf(UNKNOWN_STR);
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	}
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						}
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