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Diffstat (limited to 'sound/soc/fsl/fsl_xcvr.c')
-rw-r--r--sound/soc/fsl/fsl_xcvr.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c
index f0fb33d719..c46f64557a 100644
--- a/sound/soc/fsl/fsl_xcvr.c
+++ b/sound/soc/fsl/fsl_xcvr.c
@@ -174,7 +174,9 @@ static int fsl_xcvr_activate_ctl(struct snd_soc_dai *dai, const char *name,
struct snd_kcontrol *kctl;
bool enabled;
- kctl = snd_soc_card_get_kcontrol(card, name);
+ lockdep_assert_held(&card->snd_card->controls_rwsem);
+
+ kctl = snd_soc_card_get_kcontrol_locked(card, name);
if (kctl == NULL)
return -ENOENT;
@@ -576,10 +578,14 @@ static int fsl_xcvr_startup(struct snd_pcm_substream *substream,
xcvr->streams |= BIT(substream->stream);
if (!xcvr->soc_data->spdif_only) {
+ struct snd_soc_card *card = dai->component->card;
+
/* Disable XCVR controls if there is stream started */
+ down_read(&card->snd_card->controls_rwsem);
fsl_xcvr_activate_ctl(dai, fsl_xcvr_mode_kctl.name, false);
fsl_xcvr_activate_ctl(dai, fsl_xcvr_arc_mode_kctl.name, false);
fsl_xcvr_activate_ctl(dai, fsl_xcvr_earc_capds_kctl.name, false);
+ up_read(&card->snd_card->controls_rwsem);
}
return 0;
@@ -598,11 +604,15 @@ static void fsl_xcvr_shutdown(struct snd_pcm_substream *substream,
/* Enable XCVR controls if there is no stream started */
if (!xcvr->streams) {
if (!xcvr->soc_data->spdif_only) {
+ struct snd_soc_card *card = dai->component->card;
+
+ down_read(&card->snd_card->controls_rwsem);
fsl_xcvr_activate_ctl(dai, fsl_xcvr_mode_kctl.name, true);
fsl_xcvr_activate_ctl(dai, fsl_xcvr_arc_mode_kctl.name,
(xcvr->mode == FSL_XCVR_MODE_ARC));
fsl_xcvr_activate_ctl(dai, fsl_xcvr_earc_capds_kctl.name,
(xcvr->mode == FSL_XCVR_MODE_EARC));
+ up_read(&card->snd_card->controls_rwsem);
}
ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_IER0,
FSL_XCVR_IRQ_EARC_ALL, 0);