[CRYPTO] tcrypt: Return -EAGAIN from module_init()

Intentionaly return -EAGAIN from module_init() to ensure
it doesn't stay loaded in the kernel.  The module does all
its work from init() and doesn't offer any runtime
functionality => we don't need it in the memory, do we?
Signed-off-by: Michal Ludvig <michal@logix.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/tcrypt.c

@@ -1113,7 +1113,14 @@ static int __init init(void)
 
 	kfree(xbuf);
 	kfree(tvmem);
-	return 0;
+
+	/* We intentionaly return -EAGAIN to prevent keeping
+	 * the module. It does all its work from init()
+	 * and doesn't offer any runtime functionality 
+	 * => we don't need it in the memory, do we?
+	 *                                        -- mludvig
+	 */
+	return -EAGAIN;
 }
 
 /*