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-rw-r--r--src/mixer_control.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/src/mixer_control.c b/src/mixer_control.c
index d3f246800..f1d67a078 100644
--- a/src/mixer_control.c
+++ b/src/mixer_control.c
@@ -58,9 +58,7 @@ mixer_new(const struct mixer_plugin *plugin, const struct config_param *param)
void
mixer_free(struct mixer *mixer)
{
- if (!mixer) {
- return;
- }
+ assert(mixer != NULL);
assert(mixer->plugin != NULL);
assert(mixer->mutex != NULL);
@@ -74,9 +72,7 @@ mixer_open(struct mixer *mixer)
{
bool success;
- if (!mixer) {
- return false;
- }
+ assert(mixer != NULL);
assert(mixer->plugin != NULL);
g_mutex_lock(mixer->mutex);
@@ -89,9 +85,7 @@ mixer_open(struct mixer *mixer)
void
mixer_close(struct mixer *mixer)
{
- if (!mixer) {
- return;
- }
+ assert(mixer != NULL);
assert(mixer->plugin != NULL);
g_mutex_lock(mixer->mutex);
@@ -104,6 +98,8 @@ mixer_get_volume(struct mixer *mixer)
{
int volume;
+ assert(mixer != NULL);
+
g_mutex_lock(mixer->mutex);
volume = mixer->plugin->get_volume(mixer);
g_mutex_unlock(mixer->mutex);
@@ -116,6 +112,8 @@ mixer_set_volume(struct mixer *mixer, unsigned volume)
{
bool success;
+ assert(mixer != NULL);
+
g_mutex_lock(mixer->mutex);
success = mixer->plugin->set_volume(mixer, volume);
g_mutex_unlock(mixer->mutex);