diff options
| author | Shengjiu Wang <shengjiu.wang@nxp.com> | 2019-07-10 10:55:38 +0800 |
|---|---|---|
| committer | Dong Aisheng <aisheng.dong@nxp.com> | 2019-11-25 15:48:46 +0800 |
| commit | b4d37eb87a4a3aa7292ba1ac593a6701b47541cb (patch) | |
| tree | 436db3170a7dc87114edf743f5c7c8794661ff8f /sound/soc/fsl/fsl_easrc.c | |
| parent | 1b89c277d102331afe22aefb1379f16d4ada4474 (diff) | |
MLK-22243: fsl_easrc: Add lock to protect configuration of slot
With multi-instance case, the fsl_easrc_config_slot will be called
in parallel, the fsl_easrc_slot is independent with context, so
we need to lock to protect the access of fsl_easrc_config_slot,
otherwise, the slot configuration will be fail for some instance
that cause "input DMA task timeout".
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Diffstat (limited to 'sound/soc/fsl/fsl_easrc.c')
| -rw-r--r-- | sound/soc/fsl/fsl_easrc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c index 21262ee7ded7..cea61f774bc7 100644 --- a/sound/soc/fsl/fsl_easrc.c +++ b/sound/soc/fsl/fsl_easrc.c @@ -1065,6 +1065,7 @@ int fsl_easrc_config_context(struct fsl_easrc *easrc, unsigned int ctx_id) { struct fsl_easrc_context *ctx; struct device *dev; + unsigned long lock_flags; int ret; /* to modify prefilter coeficients, the user must perform @@ -1094,7 +1095,9 @@ int fsl_easrc_config_context(struct fsl_easrc *easrc, unsigned int ctx_id) if (ret) return ret; + spin_lock_irqsave(&easrc->lock, lock_flags); ret = fsl_easrc_config_slot(easrc, ctx->index); + spin_unlock_irqrestore(&easrc->lock, lock_flags); if (ret) return ret; |