ASoC: qcom: fix unsigned int bitwidth compared to less than zero

The check for an error return from the call to snd_pcm_format_width
is never true as the unsigned int bitwidth can never be less than
zero. Fix this by making bitwidth an int.

Fixes: 7cb37b7b ("ASoC: qcom: Add support for lpass hdmi driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20201028115112.109017-1-colin.king@canonical.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/qcom/lpass-hdmi.c

@@ -24,7 +24,7 @@ static int lpass_hdmi_daiops_hw_params(struct snd_pcm_substream *substream,
 	unsigned int rate = params_rate(params);
 	unsigned int channels = params_channels(params);
 	unsigned int ret;
-	unsigned int bitwidth;
+	int bitwidth;
 	unsigned int word_length;
 	unsigned int ch_sts_buf0;
 	unsigned int ch_sts_buf1;