diff options
| -rw-r--r-- | sound/soc/soc-dapm.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 2c4c13419539..e71cd5b660ad 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -295,7 +295,22 @@ EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty); static inline struct snd_soc_dapm_widget *dapm_cnew_widget( const struct snd_soc_dapm_widget *_widget) { - return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); + struct snd_soc_dapm_widget *w; + + w = kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); + if (!w) + return NULL; + + /* + * w->name is duplicated in caller, but w->sname isn't. + * Duplicate it here if defined + */ + if (_widget->sname) { + w->sname = kstrdup_const(_widget->sname, GFP_KERNEL); + if (!w->sname) + return NULL; + } + return w; } struct dapm_kcontrol_data { @@ -2412,6 +2427,7 @@ void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) kfree(w->kcontrols); kfree_const(w->name); + kfree_const(w->sname); kfree(w); } @@ -3469,6 +3485,7 @@ snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm, else w->name = kstrdup_const(widget->name, GFP_KERNEL); if (w->name == NULL) { + kfree_const(w->sname); kfree(w); return ERR_PTR(-ENOMEM); } |