ASoC: rt5640: Fix ignored error checks

The negative error value returned from get_sdp_info() is ignored
because it's assigned to unsigned variables.

Spotted by coverity CIDs 1042657, 1042658.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index 4d041d376f31..a3fb41179636 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -1604,8 +1604,8 @@ static int rt5640_hw_params(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_codec *codec = rtd->codec;
         struct rt5640_priv *rt5640 = snd_soc_codec_get_drvdata(codec);
-        unsigned int val_len = 0, val_clk, mask_clk, dai_sel;
-        int pre_div, bclk_ms, frame_size;
+        unsigned int val_len = 0, val_clk, mask_clk;
+        int dai_sel, pre_div, bclk_ms, frame_size;
 
         rt5640->lrck[dai->id] = params_rate(params);
         pre_div = get_clk_info(rt5640->sysclk, rt5640->lrck[dai->id]);
@@ -1675,7 +1675,8 @@ static int rt5640_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 {
         struct snd_soc_codec *codec = dai->codec;
         struct rt5640_priv *rt5640 = snd_soc_codec_get_drvdata(codec);
-        unsigned int reg_val = 0, dai_sel;
+        unsigned int reg_val = 0;
+        int dai_sel;
 
         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
         case SND_SOC_DAIFMT_CBM_CFM: