From 70dd0c05d1f06f6d9cec558227224e96224583eb Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 12 Jul 2012 23:17:38 +0200 Subject: [PATCH] add some debug messages for device user count --- device.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/device.c b/device.c index f0361d9..bc5bc46 100644 --- a/device.c +++ b/device.c @@ -389,6 +389,17 @@ void device_set_present(struct device *dev, bool state) device_refresh_present(dev); } +static int device_refcount(struct device *dev) +{ + struct list_head *list; + int count = 0; + + list_for_each(list, &dev->users) + count++; + + return count; +} + void device_add_user(struct device_user *dep, struct device *dev) { struct list_head *head; @@ -406,6 +417,7 @@ void device_add_user(struct device_user *dep, struct device *dev) else head = &dev->users; list_add_tail(&dep->list, head); + D(DEVICE, "Add user for device '%s', refcount=%d\n", dev->ifname, device_refcount(dev)); if (dep->cb && dev->present) { dep->cb(dep, DEV_EVENT_ADD); @@ -446,6 +458,7 @@ void device_remove_user(struct device_user *dep) list_del(&dep->list); dep->dev = NULL; + D(DEVICE, "Remove user for device '%s', refcount=%d\n", dev->ifname, device_refcount(dev)); __device_free_unused(dev); } -- 2.25.1