audio: mixer: Memory, blob, and fast_get allocs to module API

Allocate all memory, blob handlers, and fast_get() buffers through
module API mod_alloc() and friends and remove all redundant rfree(),
comp_data_blob_handler_free(), and fast_put() calls from module unload
functions and init error branches.

When resources are allocated through module API functions they
are automatically freed when the module is unloaded. This
simplifies error handling and unloading process.

Signed-off-by: Jyri Sarha <[email protected]>

Author: Jyri Sarha

src/audio/mixer/mixer.c

@@ -14,7 +14,6 @@
 #include <sof/common.h>
 #include <rtos/panic.h>
 #include <sof/ipc/msg.h>
-#include <rtos/alloc.h>
 #include <rtos/init.h>
 #include <sof/lib/uuid.h>
 #include <sof/list.h>
@@ -47,7 +46,7 @@ static int mixer_init(struct processing_module *mod)
 
 	comp_dbg(dev, "mixer_init()");
 
-	md = rzalloc(SOF_MEM_FLAG_USER, sizeof(*md));
+	md = mod_zalloc(mod, sizeof(*md));
 	if (!md)
 		return -ENOMEM;
 
@@ -61,13 +60,10 @@ static int mixer_init(struct processing_module *mod)
 
 static int mixer_free(struct processing_module *mod)
 {
-	struct mixer_data *md = module_get_private_data(mod);
 	struct comp_dev *dev = mod->dev;
 
 	comp_dbg(dev, "mixer_free()");
 
-	rfree(md);
-
 	return 0;
 }