diff -urNp 2.4.20-rc1/kernel/module.c x/kernel/module.c
--- 2.4.20-rc1/kernel/module.c	Tue Jan 22 18:56:00 2002
+++ x/kernel/module.c	Tue Nov  5 23:42:14 2002
@@ -78,6 +78,8 @@ static int kmalloc_failed;
  
 spinlock_t modlist_lock = SPIN_LOCK_UNLOCKED;
 
+static DECLARE_MUTEX(module_mutex);
+
 /**
  * inter_module_register - register a new set of inter module data.
  * @im_name: an arbitrary string to identify the data, must be unique
@@ -298,6 +300,7 @@ sys_create_module(const char *name_user,
 
 	if (!capable(CAP_SYS_MODULE))
 		return -EPERM;
+	down(&module_mutex);
 	lock_kernel();
 	if ((namelen = get_mod_name(name_user, &name)) < 0) {
 		error = namelen;
@@ -335,6 +338,7 @@ err1:
 	put_mod_name(name);
 err0:
 	unlock_kernel();
+	up(&module_mutex);
 	return error;
 }
 
@@ -353,6 +357,7 @@ sys_init_module(const char *name_user, s
 
 	if (!capable(CAP_SYS_MODULE))
 		return -EPERM;
+	down(&module_mutex);
 	lock_kernel();
 	if ((namelen = get_mod_name(name_user, &name)) < 0) {
 		error = namelen;
@@ -549,13 +554,16 @@ sys_init_module(const char *name_user, s
 	/* Initialize the module.  */
 	atomic_set(&mod->uc.usecount,1);
 	mod->flags |= MOD_INITIALIZING;
+	up(&module_mutex);
 	if (mod->init && (error = mod->init()) != 0) {
+		down(&module_mutex);
 		atomic_set(&mod->uc.usecount,0);
 		mod->flags &= ~MOD_INITIALIZING;
 		if (error > 0)	/* Buggy module */
 			error = -EBUSY;
 		goto err0;
 	}
+	down(&module_mutex);
 	atomic_dec(&mod->uc.usecount);
 
 	/* And set it running.  */
@@ -572,6 +580,7 @@ err1:
 	put_mod_name(name);
 err0:
 	unlock_kernel();
+	up(&module_mutex);
 	kfree(name_tmp);
 	return error;
 }
@@ -602,6 +611,7 @@ sys_delete_module(const char *name_user)
 	if (!capable(CAP_SYS_MODULE))
 		return -EPERM;
 
+	down(&module_mutex);
 	lock_kernel();
 	if (name_user) {
 		if ((error = get_mod_name(name_user, &name)) < 0)
@@ -665,6 +675,7 @@ restart:
 	error = 0;
 out:
 	unlock_kernel();
+	up(&module_mutex);
 	return error;
 }
 
@@ -887,6 +898,7 @@ sys_query_module(const char *name_user, 
 	struct module *mod;
 	int err;
 
+	down(&module_mutex);
 	lock_kernel();
 	if (name_user == NULL)
 		mod = &kernel_module;
@@ -938,6 +950,7 @@ sys_query_module(const char *name_user, 
 	
 out:
 	unlock_kernel();
+	up(&module_mutex);
 	return err;
 }
 
@@ -956,6 +969,7 @@ sys_get_kernel_syms(struct kernel_sym *t
 	int i;
 	struct kernel_sym ksym;
 
+	down(&module_mutex);
 	lock_kernel();
 	for (mod = module_list, i = 0; mod; mod = mod->next) {
 		/* include the count for the module name! */
@@ -1000,6 +1014,7 @@ sys_get_kernel_syms(struct kernel_sym *t
 	}
 out:
 	unlock_kernel();
+	up(&module_mutex);
 	return i;
 }
 
@@ -1037,8 +1052,11 @@ free_module(struct module *mod, int tag_
 
 	if (mod->flags & MOD_RUNNING)
 	{
-		if(mod->cleanup)
+		if(mod->cleanup) {
+			up(&module_mutex);
 			mod->cleanup();
+			down(&module_mutex);
+		}
 		mod->flags &= ~MOD_RUNNING;
 	}
 
@@ -1082,6 +1100,7 @@ int get_module_list(char *p)
 	char tmpstr[64];
 	struct module_ref *ref;
 
+	down(&module_mutex);
 	for (mod = module_list; mod != &kernel_module; mod = mod->next) {
 		long len;
 		const char *q;
@@ -1150,6 +1169,7 @@ int get_module_list(char *p)
 	}
 
 fini:
+	up(&module_mutex);
 	return PAGE_SIZE - left;
 }
 
@@ -1172,6 +1192,7 @@ static void *s_start(struct seq_file *m,
 
 	if (!p)
 		return ERR_PTR(-ENOMEM);
+	down(&module_mutex);
 	lock_kernel();
 	for (v = module_list, n = *pos; v; n -= v->nsyms, v = v->next) {
 		if (n < v->nsyms) {
@@ -1181,6 +1202,7 @@ static void *s_start(struct seq_file *m,
 		}
 	}
 	unlock_kernel();
+	up(&module_mutex);
 	kfree(p);
 	return NULL;
 }
@@ -1194,6 +1216,7 @@ static void *s_next(struct seq_file *m, 
 			v->mod = v->mod->next;
 			if (!v->mod) {
 				unlock_kernel();
+				up(&module_mutex);
 				kfree(p);
 				return NULL;
 			}
@@ -1207,6 +1230,7 @@ static void s_stop(struct seq_file *m, v
 {
 	if (p && !IS_ERR(p)) {
 		unlock_kernel();
+		up(&module_mutex);
 		kfree(p);
 	}
 }