[ALSA] hda-codec - Fix wrong error checks in patch_{realtek,analog}.c

Fix wrong error checks of *_ch_mode_put() in patch_realtek.c and
patch_analog.c.  snd_hda_ch_mode_put() could return a positive
value for success, too.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>

sound/pci/hda/patch_analog.c

@@ -1640,7 +1640,7 @@ static int ad198x_ch_mode_put(struct snd_kcontrol *kcontrol,
 	int err = snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
 				      spec->num_channel_mode,
 				      &spec->multiout.max_channels);
-	if (! err && spec->need_dac_fix)
+	if (err >= 0 && spec->need_dac_fix)
 		spec->multiout.num_dacs = spec->multiout.max_channels / 2;
 	return err;
 }

sound/pci/hda/patch_realtek.c

@@ -271,7 +271,7 @@ static int alc_ch_mode_put(struct snd_kcontrol *kcontrol,
 	int err = snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
 				      spec->num_channel_mode,
 				      &spec->multiout.max_channels);
-	if (! err && spec->need_dac_fix)
+	if (err >= 0 && spec->need_dac_fix)
 		spec->multiout.num_dacs = spec->multiout.max_channels / 2;
 	return err;
 }