Merge pull request torvalds#135 from pscollins/free-initial-syscall-thread

lkl: Free all memory for the initial syscall thread

Author: Octavian Purdila

arch/lkl/include/asm/syscalls.h

@@ -2,6 +2,7 @@
 #define _ASM_LKL_SYSCALLS_H
 
 int initial_syscall_thread(void *);
+void free_initial_syscall_thread(void);
 long lkl_syscall(long no, long *params);
 
 #define sys_mmap sys_ni_syscall

arch/lkl/kernel/setup.c

@@ -138,6 +138,8 @@ long lkl_sys_halt(void)
 	lkl_ops->sem_free(idle_sem);
 	lkl_ops->sem_free(init_sem);
 
+	free_initial_syscall_thread();
+
 	return 0;
 }
 

arch/lkl/kernel/syscalls.c

@@ -363,3 +363,9 @@ int initial_syscall_thread(void *sem)
 	return ret;
 }
 
+void free_initial_syscall_thread(void)
+{
+	/* NB: .completion is freed in lkl_sys_halt, because it is
+	 * allocated in the LKL init routine. */
+	lkl_ops->sem_free(default_syscall_thread_data.mutex);
+}