ASoC: wm_adsp: free memory when unloaded or closed
The patch adds a wm_adsp2_remove() function to ensure that memory
is freed when the driver is unloaded or shut down.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index d3b1cb1..5f8727a 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -944,6 +944,13 @@
kfree(ctl_work);
}
+static void wm_adsp_free_ctl_blk(struct wm_coeff_ctl *ctl)
+{
+ kfree(ctl->cache);
+ kfree(ctl->name);
+ kfree(ctl);
+}
+
static int wm_adsp_create_control(struct wm_adsp *dsp,
const struct wm_adsp_alg_region *alg_region,
unsigned int offset, unsigned int len,
@@ -2340,6 +2347,19 @@
}
EXPORT_SYMBOL_GPL(wm_adsp2_init);
+void wm_adsp2_remove(struct wm_adsp *dsp)
+{
+ struct wm_coeff_ctl *ctl;
+
+ while (!list_empty(&dsp->ctl_list)) {
+ ctl = list_first_entry(&dsp->ctl_list, struct wm_coeff_ctl,
+ list);
+ list_del(&ctl->list);
+ wm_adsp_free_ctl_blk(ctl);
+ }
+}
+EXPORT_SYMBOL_GPL(wm_adsp2_remove);
+
int wm_adsp_compr_open(struct wm_adsp *dsp, struct snd_compr_stream *stream)
{
struct wm_adsp_compr *compr;