--- zzzz-none-000/linux-2.6.32.61/kernel/kmod.c	2013-06-10 09:43:48.000000000 +0000
+++ ar9-7330-650/linux-2.6.32.61/kernel/kmod.c	2014-06-26 09:09:01.000000000 +0000
@@ -96,7 +96,6 @@
 out:
 	return -ENOMEM;
 }
-
 /**
  * __request_module - try to load a kernel module
  * @wait: wait (or not) for the operation to complete
@@ -161,7 +160,6 @@
 	trace_module_request(module_name, wait, _RET_IP_);
 
 	ret = call_modprobe(module_name, wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
-
 	atomic_dec(&kmod_concurrent);
 	return ret;
 }
@@ -257,7 +255,6 @@
 	else
 		call_usermodehelper_freeinfo(sub_info);
 }
-
 /* Keventd can't block, but this (a child) can. */
 static int wait_for_helper(void *data)
 {
@@ -313,7 +310,6 @@
 
 	if (wait != UMH_NO_WAIT)
 		wait &= ~UMH_KILLABLE;
-
 	/* CLONE_VFORK: wait until the usermode helper has execve'd
 	 * successfully We need the data structures to stay around
 	 * until that is done.  */
@@ -456,6 +452,28 @@
 						  char **envp, gfp_t gfp_mask)
 {
 	struct subprocess_info *sub_info;
+
+
+    /*--------------------------------------------------------------------------------------*\
+     * AVM Speed Patch !!!!
+    \*--------------------------------------------------------------------------------------*/
+#if 1
+    if(!strcmp(path, "/sbin/hotplug")) {
+        if(argv[1] && !strcmp(argv[1], "tty")) 
+            return NULL;
+        if(argv[1] && !strcmp(argv[1], "bdi")) 
+            return NULL;
+        if(argv[1] && !strcmp(argv[1], "mtd")) 
+            return NULL;
+        if(argv[1] && !strcmp(argv[1], "capi_oslib")) 
+            return NULL;
+        if(argv[1] && !strcmp(argv[1], "mem")) 
+            return NULL;
+        if(argv[1] && !strcmp(argv[1], "module")) 
+            return NULL;
+    }
+#endif
+
 	sub_info = kzalloc(sizeof(struct subprocess_info), gfp_mask);
 	if (!sub_info)
 		goto out;
@@ -560,6 +578,10 @@
 	BUG_ON(atomic_read(&sub_info->cred->usage) != 1);
 	validate_creds(sub_info->cred);
 
+	if (!sub_info->path) {
+		call_usermodehelper_freeinfo(sub_info);
+		return -EINVAL;
+	}
 	helper_lock();
 	if (sub_info->path[0] == '\0')
 		goto out;
@@ -575,7 +597,6 @@
 	queue_work(khelper_wq, &sub_info->work);
 	if (wait == UMH_NO_WAIT)	/* task has freed sub_info */
 		goto unlock;
-
 	if (wait & UMH_KILLABLE) {
 		retval = wait_for_completion_killable(&done);
 		if (!retval)
@@ -586,10 +607,10 @@
 			goto unlock;
 		/* fallthrough, umh_complete() was already called */
 	}
-
 	wait_for_completion(&done);
 wait_done:
 	retval = sub_info->retval;
+
 out:
 	call_usermodehelper_freeinfo(sub_info);
 unlock: