asoc: Add check for substream ref_count before access the substream.

Add check for substream ref count before access the substream.

Change-Id: Iccb6226519e8fddf624f82160a0d8d22641944db
Signed-off-by: Prasad Kumpatla <nkumpat@codeaurora.org>
This commit is contained in:
Prasad Kumpatla authored and Gerrit - the friendly Code Review server committed 2020-07-02 00:59:53 -07:00
1 parent 7b9845981c
commit d4e346813c
3 files changed
+80 -35

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+22 -12
View File
@@ -551,13 +551,15 @@ static int msm_pcm_volume_ctl_put(struct snd_kcontrol *kcontrol,
goto exit;
}
mutex_lock(&loopback_session_lock);
prtd = substream->runtime->private_data;
if (!prtd) {
rc = -ENODEV;
mutex_unlock(&loopback_session_lock);
goto exit;
if (substream->ref_count > 0) {
prtd = substream->runtime->private_data;
if (!prtd) {
rc = -ENODEV;
mutex_unlock(&loopback_session_lock);
goto exit;
}
rc = pcm_loopback_set_volume(prtd, volume);
}
rc = pcm_loopback_set_volume(prtd, volume);
mutex_unlock(&loopback_session_lock);
exit:
return rc;
@@ -583,13 +585,15 @@ static int msm_pcm_volume_ctl_get(struct snd_kcontrol *kcontrol,
goto exit;
}
mutex_lock(&loopback_session_lock);
prtd = substream->runtime->private_data;
if (!prtd) {
rc = -ENODEV;
mutex_unlock(&loopback_session_lock);
goto exit;
if (substream->ref_count > 0) {
prtd = substream->runtime->private_data;
if (!prtd) {
rc = -ENODEV;
mutex_unlock(&loopback_session_lock);
goto exit;
}
ucontrol->value.integer.value[0] = prtd->volume;
}
ucontrol->value.integer.value[0] = prtd->volume;
mutex_unlock(&loopback_session_lock);
exit:
return rc;
@@ -877,6 +881,12 @@ static int msm_pcm_channel_mixer_cfg_ctl_put(struct snd_kcontrol *kcontrol,
chmixer_pspd);
mutex_lock(&loopback_session_lock);
if (substream->ref_count <= 0) {
pr_err_ratelimited("%s: substream ref_count:%d invalid\n",
__func__, substream->ref_count);
mutex_unlock(&loopback_session_lock);
return -EINVAL;
}
if (chmixer_pspd->enable && substream->runtime) {
prtd = substream->runtime->private_data;
if (!prtd) {
+11 -7
View File
@@ -754,9 +754,11 @@ static int msm_pcm_volume_ctl_get(struct snd_kcontrol *kcontrol,
return -ENODEV;
}
mutex_lock(&pdata->lock);
prtd = substream->runtime->private_data;
if (prtd)
ucontrol->value.integer.value[0] = prtd->volume;
if (substream->ref_count > 0) {
prtd = substream->runtime->private_data;
if (prtd)
ucontrol->value.integer.value[0] = prtd->volume;
}
mutex_unlock(&pdata->lock);
return 0;
}
@@ -799,10 +801,12 @@ static int msm_pcm_volume_ctl_put(struct snd_kcontrol *kcontrol,
}
mutex_lock(&pdata->lock);
prtd = substream->runtime->private_data;
if (prtd) {
rc = msm_pcm_set_volume(prtd, volume);
prtd->volume = volume;
if (substream->ref_count > 0) {
prtd = substream->runtime->private_data;
if (prtd) {
rc = msm_pcm_set_volume(prtd, volume);
prtd->volume = volume;
}
}
mutex_unlock(&pdata->lock);
return rc;
+47 -16
View File
@@ -1325,7 +1325,12 @@ static int msm_pcm_adsp_stream_cmd_put(struct snd_kcontrol *kcontrol,
ret = -EINVAL;
goto done;
}
if (substream->ref_count <= 0) {
pr_err_ratelimited("%s substream ref_count:%d invalid\n",
__func__, substream->ref_count);
ret = -EINVAL;
goto done;
}
prtd = substream->runtime->private_data;
if (prtd == NULL) {
pr_err("%s prtd is null.\n", __func__);
@@ -1549,9 +1554,11 @@ static int msm_pcm_volume_ctl_get(struct snd_kcontrol *kcontrol,
}
mutex_lock(&pdata->lock);
prtd = substream->runtime->private_data;
if (prtd)
ucontrol->value.integer.value[0] = prtd->volume;
if (substream->ref_count > 0) {
prtd = substream->runtime->private_data;
if (prtd)
ucontrol->value.integer.value[0] = prtd->volume;
}
mutex_unlock(&pdata->lock);
return 0;
}
@@ -1595,10 +1602,12 @@ static int msm_pcm_volume_ctl_put(struct snd_kcontrol *kcontrol,
}
mutex_lock(&pdata->lock);
prtd = substream->runtime->private_data;
if (prtd) {
rc = msm_pcm_set_volume(prtd, volume);
prtd->volume = volume;
if (substream->ref_count > 0) {
prtd = substream->runtime->private_data;
if (prtd) {
rc = msm_pcm_set_volume(prtd, volume);
prtd->volume = volume;
}
}
mutex_unlock(&pdata->lock);
return rc;
@@ -1659,9 +1668,11 @@ static int msm_pcm_compress_ctl_get(struct snd_kcontrol *kcontrol,
return 0;
}
mutex_lock(&pdata->lock);
prtd = substream->runtime->private_data;
if (prtd)
ucontrol->value.integer.value[0] = prtd->compress_enable;
if (substream->ref_count > 0) {
prtd = substream->runtime->private_data;
if (prtd)
ucontrol->value.integer.value[0] = prtd->compress_enable;
}
mutex_unlock(&pdata->lock);
return 0;
}
@@ -1691,11 +1702,13 @@ static int msm_pcm_compress_ctl_put(struct snd_kcontrol *kcontrol,
return 0;
}
mutex_lock(&pdata->lock);
prtd = substream->runtime->private_data;
if (prtd) {
pr_debug("%s: setting compress flag to 0x%x\n",
__func__, compress);
prtd->compress_enable = compress;
if (substream->ref_count > 0) {
prtd = substream->runtime->private_data;
if (prtd) {
pr_debug("%s: setting compress flag to 0x%x\n",
__func__, compress);
prtd->compress_enable = compress;
}
}
mutex_unlock(&pdata->lock);
return rc;
@@ -1805,6 +1818,12 @@ static int msm_pcm_chmap_ctl_put(struct snd_kcontrol *kcontrol,
return 0;
mutex_lock(&pdata->lock);
if (substream->ref_count <= 0) {
pr_err_ratelimited("%s: substream ref_count:%d invalid\n",
__func__, substream->ref_count);
mutex_unlock(&pdata->lock);
return -EINVAL;
}
prtd = substream->runtime ? substream->runtime->private_data : NULL;
if (prtd) {
prtd->set_channel_map = true;
@@ -1872,6 +1891,12 @@ static int msm_pcm_chmap_ctl_get(struct snd_kcontrol *kcontrol,
return 0; /* no channels set */
mutex_lock(&pdata->lock);
if (substream->ref_count <= 0) {
pr_err_ratelimited("%s: substream ref_count:%d invalid\n",
__func__, substream->ref_count);
mutex_unlock(&pdata->lock);
return -EINVAL;
}
prtd = substream->runtime ? substream->runtime->private_data : NULL;
if (prtd && prtd->set_channel_map == true) {
@@ -2154,6 +2179,12 @@ static int msm_pcm_channel_mixer_cfg_ctl_put(struct snd_kcontrol *kcontrol,
}
mutex_lock(&pdata->lock);
if (substream->ref_count <= 0) {
pr_err_ratelimited("%s: substream ref_count:%d invalid\n",
__func__, substream->ref_count);
mutex_unlock(&pdata->lock);
return -EINVAL;
}
prtd = substream->runtime ? substream->runtime->private_data : NULL;
if (chmixer_pspd->enable && prtd) {
if (session_type == SESSION_TYPE_RX &&