Index: kernel/kmod.c
===================================================================
--- kernel/kmod.c	(Revision 9469)
+++ kernel/kmod.c	(Arbeitskopie)
@@ -578,6 +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;
Index: lib/random32.c
===================================================================
--- lib/random32.c	(Revision 9469)
+++ lib/random32.c	(Arbeitskopie)
@@ -96,7 +96,7 @@
 	 */
 	for_each_possible_cpu (i) {
 		struct rnd_state *state = &per_cpu(net_rand_state, i);
-		state->s1 = __seed(state->s1 ^ entropy, 1);
+		state->s1 = __seed(state->s1 ^ entropy, 2);
 	}
 }
 EXPORT_SYMBOL(srandom32);
@@ -113,9 +113,9 @@
 		struct rnd_state *state = &per_cpu(net_rand_state,i);
 
 #define LCG(x)	((x) * 69069)	/* super-duper LCG */
-		state->s1 = __seed(LCG(i + jiffies), 1);
-		state->s2 = __seed(LCG(state->s1), 7);
-		state->s3 = __seed(LCG(state->s2), 15);
+		state->s1 = __seed(LCG(i + jiffies), 2);
+		state->s2 = __seed(LCG(state->s1), 8);
+		state->s3 = __seed(LCG(state->s2), 16);
 
 		/* "warm it up" */
 		__random32(state);
@@ -142,9 +142,9 @@
 		u32 seeds[3];
 
 		get_random_bytes(&seeds, sizeof(seeds));
-		state->s1 = __seed(seeds[0], 1);
-		state->s2 = __seed(seeds[1], 7);
-		state->s3 = __seed(seeds[2], 15);
+		state->s1 = __seed(seeds[0], 2);
+		state->s2 = __seed(seeds[1], 8);
+		state->s3 = __seed(seeds[2], 16);
 
 		/* mix it in */
 		__random32(state);
Index: drivers/block/nbd.c
===================================================================
--- drivers/block/nbd.c	(Revision 9469)
+++ drivers/block/nbd.c	(Arbeitskopie)
@@ -655,7 +655,9 @@
 
 		mutex_unlock(&lo->tx_lock);
 
-		thread = kthread_create(nbd_thread, lo, lo->disk->disk_name);
+		thread = kthread_create(nbd_thread, lo, "%s",
+					lo->disk->disk_name);
+
 		if (IS_ERR(thread)) {
 			mutex_lock(&lo->tx_lock);
 			return PTR_ERR(thread);
Index: drivers/char/n_tty.c
===================================================================
--- drivers/char/n_tty.c	(Revision 9486)
+++ drivers/char/n_tty.c	(Arbeitskopie)
@@ -1969,7 +1969,9 @@
 				tty->ops->flush_chars(tty);
 		} else {
 			while (nr > 0) {
+				mutex_lock(&tty->output_lock);
 				c = tty->ops->write(tty, b, nr);
+				mutex_unlock(&tty->output_lock);
 				if (c < 0) {
 					retval = c;
 					goto break_out;