[PATCH] char dev request_module fix

From: Rusty Russell <rusty@rustcorp.com.au>

Module aliases are all of form "char-major-<major>-<minor>".  char_dev.c
calls request_module with "char-major-<major>".

fs/char_dev.c

@@ -434,7 +434,7 @@ void cdev_init(struct cdev *cdev, struct file_operations *fops)
 
 static struct kobject *base_probe(dev_t dev, int *part, void *data)
 {
-	request_module("char-major-%d", MAJOR(dev));
+	request_module("char-major-%d-%d", MAJOR(dev), MINOR(dev));
 	return NULL;
 }