Properly implement liballoc_free ()

kernel/proc/mutex.c

@@ -10,16 +10,16 @@ void proc_mutex_lock (struct proc* proc, struct proc_mutex* mutex) {
   spin_lock_ctx_t ctxmt;
 
 try:
-  spin_lock (&mutex->lock, &ctxmt);
+  spin_lock (&mutex->resource->lock, &ctxmt);
 
   if (!mutex->locked || mutex->owner == proc) {
     mutex->locked = true;
     mutex->owner = proc;
-    spin_unlock (&mutex->lock, &ctxmt);
+    spin_unlock (&mutex->resource->lock, &ctxmt);
     return;
   }
 
-  spin_unlock (&mutex->lock, &ctxmt);
+  spin_unlock (&mutex->resource->lock, &ctxmt);
 
   proc_suspend (proc, &mutex->suspension_q);
 
@@ -29,10 +29,10 @@ try:
 bool proc_mutex_unlock (struct proc* proc, struct proc_mutex* mutex) {
   spin_lock_ctx_t ctxmt, ctxsq;
 
-  spin_lock (&mutex->lock, &ctxmt);
+  spin_lock (&mutex->resource->lock, &ctxmt);
 
   if (mutex->owner != proc) {
-    spin_unlock (&mutex->lock, &ctxmt);
+    spin_unlock (&mutex->resource->lock, &ctxmt);
     return false;
   }
 
@@ -47,7 +47,7 @@ bool proc_mutex_unlock (struct proc* proc, struct proc_mutex* mutex) {
     mutex->owner = resumed_proc;
 
     spin_unlock (&mutex->suspension_q.lock, &ctxsq);
-    spin_unlock (&mutex->lock, &ctxmt);
+    spin_unlock (&mutex->resource->lock, &ctxmt);
     proc_resume (resumed_proc);
 
     return true;
@@ -58,7 +58,7 @@ bool proc_mutex_unlock (struct proc* proc, struct proc_mutex* mutex) {
   mutex->locked = false;
   mutex->owner = NULL;
 
-  spin_unlock (&mutex->lock, &ctxmt);
+  spin_unlock (&mutex->resource->lock, &ctxmt);
 
   return true;
 }