diff --git a/test/cmocka/src/audio/pipeline/pipeline_new.c b/test/cmocka/src/audio/pipeline/pipeline_new.c
index ec8ea76aa..1dba07e2b 100644
--- a/test/cmocka/src/audio/pipeline/pipeline_new.c
+++ b/test/cmocka/src/audio/pipeline/pipeline_new.c
@@ -22,7 +22,7 @@ static int setup(void **state)
 
 	pipeline_posn_init(sof_get());
 
-	if (pipeline_data == NULL)
+	if (!pipeline_data)
 		return -1;
 
 	struct sof_ipc_pipe_new pipe_desc = { .core = 1, .priority = 2 };
diff --git a/test/cmocka/src/list/list_item_append.c b/test/cmocka/src/list/list_item_append.c
index 5bf2ab93b..856e45a92 100644
--- a/test/cmocka/src/list/list_item_append.c
+++ b/test/cmocka/src/list/list_item_append.c
@@ -23,7 +23,7 @@ static int setup(void **state)
 {
 	struct test_data *data = malloc(sizeof(struct test_data));
 
-	if (data == NULL)
+	if (!data)
 		return -1;
 
 	data->head = malloc(sizeof(struct list_item));
diff --git a/test/cmocka/src/list/list_item_del.c b/test/cmocka/src/list/list_item_del.c
index 1dc15a7d0..e9a0edffd 100644
--- a/test/cmocka/src/list/list_item_del.c
+++ b/test/cmocka/src/list/list_item_del.c
@@ -23,7 +23,7 @@ static int setup(void **state)
 {
 	struct test_data *data = malloc(sizeof(struct test_data));
 
-	if (data == NULL)
+	if (!data)
 		return -1;
 
 	data->head = malloc(sizeof(struct list_item));
diff --git a/test/cmocka/src/list/list_item_is_last.c b/test/cmocka/src/list/list_item_is_last.c
index a6e2373ac..9804508e0 100644
--- a/test/cmocka/src/list/list_item_is_last.c
+++ b/test/cmocka/src/list/list_item_is_last.c
@@ -23,7 +23,7 @@ static int setup(void **state)
 {
 	struct test_data *data = malloc(sizeof(struct test_data));
 
-	if (data == NULL)
+	if (!data)
 		return -1;
 
 	data->head = malloc(sizeof(struct list_item));
diff --git a/test/cmocka/src/list/list_item_prepend.c b/test/cmocka/src/list/list_item_prepend.c
index aa9e8fdad..55f615149 100644
--- a/test/cmocka/src/list/list_item_prepend.c
+++ b/test/cmocka/src/list/list_item_prepend.c
@@ -23,7 +23,7 @@ static int setup(void **state)
 {
 	struct test_data *data = malloc(sizeof(struct test_data));
 
-	if (data == NULL)
+	if (!data)
 		return -1;
 
 	data->head = malloc(sizeof(struct list_item));