[PATCH 2/2] ASoC: fsl_asrc_m2m: return error value in asrc_m2m_device_run()

[Shengjiu Wang]

The asrc_m2m_device_run() function is the main process function
of converting, the error need to be returned to user, that user
can handle error case properly.

Fixes: 24a01710f627 ("ASoC: fsl_asrc_m2m: Add memory to memory function")
Signed-off-by: Shengjiu Wang <shengjiu.w...@nxp.com>
---
 sound/soc/fsl/fsl_asrc_m2m.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/sound/soc/fsl/fsl_asrc_m2m.c b/sound/soc/fsl/fsl_asrc_m2m.c
index ab9033ccb01e..f46881f71e43 100644
--- a/sound/soc/fsl/fsl_asrc_m2m.c
+++ b/sound/soc/fsl/fsl_asrc_m2m.c
@@ -183,7 +183,7 @@ static int asrc_dmaconfig(struct fsl_asrc_pair *pair,
 }
 
 /* main function of converter */
-static void asrc_m2m_device_run(struct fsl_asrc_pair *pair, struct 
snd_compr_task_runtime *task)
+static int asrc_m2m_device_run(struct fsl_asrc_pair *pair, struct 
snd_compr_task_runtime *task)
 {
        struct fsl_asrc *asrc = pair->asrc;
        struct device *dev = &asrc->pdev->dev;
@@ -193,7 +193,7 @@ static void asrc_m2m_device_run(struct fsl_asrc_pair *pair, 
struct snd_compr_tas
        unsigned int out_dma_len;
        unsigned int width;
        u32 fifo_addr;
-       int ret;
+       int ret = 0;
 
        /* set ratio mod */
        if (asrc->m2m_set_ratio_mod) {
@@ -215,6 +215,7 @@ static void asrc_m2m_device_run(struct fsl_asrc_pair *pair, 
struct snd_compr_tas
            in_buf_len > ASRC_M2M_BUFFER_SIZE ||
            in_buf_len % (width * pair->channels / 8)) {
                dev_err(dev, "out buffer size is error: [%d]\n", in_buf_len);
+               ret = -EINVAL;
                goto end;
        }
 
@@ -245,6 +246,7 @@ static void asrc_m2m_device_run(struct fsl_asrc_pair *pair, 
struct snd_compr_tas
                }
        } else if (out_dma_len > ASRC_M2M_BUFFER_SIZE) {
                dev_err(dev, "cap buffer size error\n");
+               ret = -EINVAL;
                goto end;
        }
 
@@ -263,12 +265,14 @@ static void asrc_m2m_device_run(struct fsl_asrc_pair 
*pair, struct snd_compr_tas
 
        if (!wait_for_completion_interruptible_timeout(&pair->complete[IN], 10 
* HZ)) {
                dev_err(dev, "out DMA task timeout\n");
+               ret = -ETIMEDOUT;
                goto end;
        }
 
        if (out_dma_len > 0) {
                if 
(!wait_for_completion_interruptible_timeout(&pair->complete[OUT], 10 * HZ)) {
                        dev_err(dev, "cap DMA task timeout\n");
+                       ret = -ETIMEDOUT;
                        goto end;
                }
        }
@@ -278,7 +282,7 @@ static void asrc_m2m_device_run(struct fsl_asrc_pair *pair, 
struct snd_compr_tas
        /* update payload length for capture */
        task->output_size = out_dma_len;
 end:
-       return;
+       return ret;
 }
 
 static int fsl_asrc_m2m_comp_open(struct snd_compr_stream *stream)
@@ -525,9 +529,7 @@ static int fsl_asrc_m2m_comp_task_start(struct 
snd_compr_stream *stream,
        struct snd_compr_runtime *runtime = stream->runtime;
        struct fsl_asrc_pair *pair = runtime->private_data;
 
-       asrc_m2m_device_run(pair, task);
-
-       return 0;
+       return asrc_m2m_device_run(pair, task);
 }
 
 static int fsl_asrc_m2m_comp_task_stop(struct snd_compr_stream *stream,
-- 
2.34.1