From 3f68a7698d882f1e1ce5827fac92736e19f76018 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 9 Apr 2014 15:16:34 +0200 Subject: cdev: Add function to find cdev by device_node This adds a device_node member to struct cdev and a function to find a cdev by device_node. This also removes the setting of cdev->dev->device_node in the of partition parser. We must not set the device since it may not refer to a partition but to a whole device with partitions. Signed-off-by: Sascha Hauer --- fs/devfs-core.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'fs') diff --git a/fs/devfs-core.c b/fs/devfs-core.c index f45f8cadf1..62571fb8a3 100644 --- a/fs/devfs-core.c +++ b/fs/devfs-core.c @@ -57,6 +57,19 @@ struct cdev *cdev_by_name(const char *filename) return NULL; } +struct cdev *cdev_by_device_node(struct device_node *node) +{ + struct cdev *cdev; + + list_for_each_entry(cdev, &cdev_list, list) { + if (!cdev->device_node) + continue; + if (cdev->device_node == node) + return cdev; + } + return NULL; +} + /** * device_find_partition - find a partition belonging to a physical device * -- cgit v1.2.3