diff --git a/drivers/base/core.c b/drivers/base/core.c
index 8079afca49724d5c66d1eca47bc104b8d40c257b..55e530942ab0a705c452028c133e8eed15a5fdb6 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -777,10 +777,16 @@ static void device_remove_class_symlinks(struct device *dev)
 int dev_set_name(struct device *dev, const char *fmt, ...)
 {
 	va_list vargs;
+	char *s;
 
 	va_start(vargs, fmt);
 	vsnprintf(dev->bus_id, sizeof(dev->bus_id), fmt, vargs);
 	va_end(vargs);
+
+	/* ewww... some of these buggers have / in the name... */
+	while ((s = strchr(dev->bus_id, '/')))
+		*s = '!';
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(dev_set_name);