linux-kernel - [PATCH 2/9] ASoC: fsl: fsl_dma: remove unused variable

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Date:   Fri, 19 Feb 2021 17:29:30 -0600
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     alsa-devel@...a-project.org
Cc:     tiwai@...e.de, broonie@...nel.org, linux-kernel@...r.kernel.org,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Timur Tabi <timur@...nel.org>,
        Nicolin Chen <nicoleotsuka@...il.com>,
        Xiubo Li <Xiubo.Lee@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Shengjiu Wang <shengjiu.wang@...il.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        linuxppc-dev@...ts.ozlabs.org (open list:FREESCALE SOC SOUND DRIVERS)
Subject: [PATCH 2/9] ASoC: fsl: fsl_dma: remove unused variable

cppcheck warning:

sound/soc/fsl/fsl_dma.c:411:10: style: Variable 'channel' is assigned
a value that is never used. [unreadVariable]

 channel = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1;
         ^

Removing this line shows the variable isn't needed any longer so
remove declaration as well.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
---
 sound/soc/fsl/fsl_dma.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index e0c39c5f4854..84bd8a5356eb 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -392,7 +392,6 @@ static int fsl_dma_open(struct snd_soc_component *component,
 	dma_addr_t ld_buf_phys;
 	u64 temp_link;  	/* Pointer to next link descriptor */
 	u32 mr;
-	unsigned int channel;
 	int ret = 0;
 	unsigned int i;
 
@@ -408,8 +407,6 @@ static int fsl_dma_open(struct snd_soc_component *component,
 		return ret;
 	}
 
-	channel = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1;
-
 	if (dma->assigned) {
 		dev_err(dev, "dma channel already assigned\n");
 		return -EBUSY;
-- 
2.25.1