Kernel bump from 4.1.3-rt to 4.1.7-rt.

[kvmfornfv.git] / kernel / sound / soc / soc-dapm.c

diff --git a/kernel/sound/soc/soc-dapm.c b/kernel/sound/soc/soc-dapm.c
index 158204d..b6c12dc 100644 (file)
--- a/kernel/sound/soc/soc-dapm.c
+++ b/kernel/sound/soc/soc-dapm.c
@@ -1811,6 +1811,7 @@ static ssize_t dapm_widget_power_read_file(struct file *file,
                                           size_t count, loff_t *ppos)
 {
        struct snd_soc_dapm_widget *w = file->private_data;
+       struct snd_soc_card *card = w->dapm->card;
        char *buf;
        int in, out;
        ssize_t ret;
@@ -1820,6 +1821,8 @@ static ssize_t dapm_widget_power_read_file(struct file *file,
        if (!buf)
                return -ENOMEM;
 
+       mutex_lock(&card->dapm_mutex);
+
        /* Supply widgets are not handled by is_connected_{input,output}_ep() */
        if (w->is_supply) {
                in = 0;
@@ -1866,6 +1869,8 @@ static ssize_t dapm_widget_power_read_file(struct file *file,
                                        p->sink->name);
        }
 
+       mutex_unlock(&card->dapm_mutex);
+
        ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
 
        kfree(buf);
@@ -2140,11 +2145,15 @@ static ssize_t dapm_widget_show(struct device *dev,
        struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
        int i, count = 0;
 
+       mutex_lock(&rtd->card->dapm_mutex);
+
        for (i = 0; i < rtd->num_codecs; i++) {
                struct snd_soc_codec *codec = rtd->codec_dais[i]->codec;
                count += dapm_widget_show_codec(codec, buf + count);
        }
 
+       mutex_unlock(&rtd->card->dapm_mutex);
+
        return count;
 }
 
@@ -3100,16 +3109,10 @@ snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
        }
 
        prefix = soc_dapm_prefix(dapm);
-       if (prefix) {
+       if (prefix)
                w->name = kasprintf(GFP_KERNEL, "%s %s", prefix, widget->name);
-               if (widget->sname)
-                       w->sname = kasprintf(GFP_KERNEL, "%s %s", prefix,
-                                            widget->sname);
-       } else {
+       else
                w->name = kasprintf(GFP_KERNEL, "%s", widget->name);
-               if (widget->sname)
-                       w->sname = kasprintf(GFP_KERNEL, "%s", widget->sname);
-       }
        if (w->name == NULL) {
                kfree(w);
                return NULL;
@@ -3557,7 +3560,7 @@ int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
                                break;
                        }
 
-                       if (!w->sname || !strstr(w->sname, dai_w->name))
+                       if (!w->sname || !strstr(w->sname, dai_w->sname))
                                continue;
 
                        if (dai_w->id == snd_soc_dapm_dai_in) {