diff options
Diffstat (limited to 'asoc/msm-pcm-loopback-v2.c')
| -rw-r--r-- | asoc/msm-pcm-loopback-v2.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/asoc/msm-pcm-loopback-v2.c b/asoc/msm-pcm-loopback-v2.c index 3b6b3a84..61318050 100644 --- a/asoc/msm-pcm-loopback-v2.c +++ b/asoc/msm-pcm-loopback-v2.c @@ -1,4 +1,4 @@ -/* Copyright (c) 2013-2018, The Linux Foundation. All rights reserved. +/* Copyright (c) 2013-2019, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -137,6 +137,7 @@ static int msm_loopback_session_mute_put(struct snd_kcontrol *kcontrol, goto done; } + mutex_lock(&loopback_session_lock); pr_debug("%s: mute=%d\n", __func__, mute); hfp_tx_mute = mute; for (n = 0; n < LOOPBACK_SESSION_MAX; n++) { @@ -149,6 +150,7 @@ static int msm_loopback_session_mute_put(struct snd_kcontrol *kcontrol, pr_err("%s: Send mute command failed rc=%d\n", __func__, ret); } + mutex_unlock(&loopback_session_lock); done: return ret; } @@ -351,6 +353,7 @@ static void stop_pcm(struct msm_pcm_loopback *pcm) if (pcm->audio_client == NULL) return; + mutex_lock(&loopback_session_lock); q6asm_cmd(pcm->audio_client, CMD_CLOSE); if (pcm->playback_substream != NULL) { @@ -365,6 +368,7 @@ static void stop_pcm(struct msm_pcm_loopback *pcm) } q6asm_audio_client_free(pcm->audio_client); pcm->audio_client = NULL; + mutex_unlock(&loopback_session_lock); } static int msm_pcm_close(struct snd_pcm_substream *substream) @@ -495,12 +499,15 @@ static int msm_pcm_volume_ctl_put(struct snd_kcontrol *kcontrol, rc = -ENODEV; goto exit; } + mutex_lock(&loopback_session_lock); prtd = substream->runtime->private_data; if (!prtd) { rc = -ENODEV; + mutex_unlock(&loopback_session_lock); goto exit; } rc = pcm_loopback_set_volume(prtd, volume); + mutex_unlock(&loopback_session_lock); exit: return rc; @@ -521,12 +528,15 @@ static int msm_pcm_volume_ctl_get(struct snd_kcontrol *kcontrol, rc = -ENODEV; goto exit; } + mutex_lock(&loopback_session_lock); prtd = substream->runtime->private_data; if (!prtd) { rc = -ENODEV; + mutex_unlock(&loopback_session_lock); goto exit; } ucontrol->value.integer.value[0] = prtd->volume; + mutex_unlock(&loopback_session_lock); exit: return rc; |