From 2c0ed6349287a15f7be73bba00e520106087cd1b Mon Sep 17 00:00:00 2001 From: "Lu, Han" Date: Fri, 27 Mar 2015 15:03:57 +0800 Subject: [PATCH] ASoC: Intel: fix warning reported by static check tool smatch The smatch tool report warning: ... CHECK sound/soc/intel/sst-haswell-pcm.c sound/soc/intel/sst-haswell-pcm.c:1110 hsw_pcm_probe() error: buffer overflow\ 'hsw_dais' 4 <= 4 sound/soc/intel/sst-haswell-pcm.c:1112 hsw_pcm_probe() error: buffer overflow\ 'hsw_dais' 4 <= 4 ... fix it by use its own struct member for post-process module, rather than sharing unused pcm member. Signed-off-by: Lu, Han Acked-by: Jie Yang Signed-off-by: Mark Brown --- sound/soc/intel/sst-haswell-pcm.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/sound/soc/intel/sst-haswell-pcm.c b/sound/soc/intel/sst-haswell-pcm.c index 6c6229ae4a02..31ffc0f0498f 100644 --- a/sound/soc/intel/sst-haswell-pcm.c +++ b/sound/soc/intel/sst-haswell-pcm.c @@ -137,6 +137,7 @@ struct hsw_priv_data { struct device *dev; enum hsw_pm_state pm_state; struct snd_soc_card *soc_card; + struct sst_module_runtime *runtime_waves; /* sound effect module */ /* page tables */ struct snd_dma_buffer dmab[HSW_PCM_COUNT][2]; @@ -902,13 +903,10 @@ static int hsw_pcm_create_modules(struct hsw_priv_data *pdata) /* create runtime blocks for module waves */ if (sst_hsw_is_module_loaded(hsw, SST_HSW_MODULE_WAVES)) { - pcm_data = &pdata->pcm[HSW_PCM_COUNT-1][0]; - pcm_data->runtime = sst_hsw_runtime_module_create(hsw, - SST_HSW_MODULE_WAVES, pcm_data->persistent_offset); - if (pcm_data->runtime == NULL) + pdata->runtime_waves = sst_hsw_runtime_module_create(hsw, + SST_HSW_MODULE_WAVES, 0); + if (pdata->runtime_waves == NULL) goto err; - pcm_data->persistent_offset = - pcm_data->runtime->persistent_offset; } return 0; @@ -933,8 +931,7 @@ static void hsw_pcm_free_modules(struct hsw_priv_data *pdata) sst_hsw_runtime_module_free(pcm_data->runtime); } if (sst_hsw_is_module_loaded(hsw, SST_HSW_MODULE_WAVES)) { - pcm_data = &pdata->pcm[HSW_PCM_COUNT-1][0]; - sst_hsw_runtime_module_free(pcm_data->runtime); + sst_hsw_runtime_module_free(pdata->runtime_waves); } }