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authorKay Sievers <kay.sievers@vrfy.org>2007-03-14 03:25:56 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2007-04-27 10:57:28 -0700
commit864062457a2e444227bd368ca5f2a2b740de604f (patch)
tree38e516852ee9825b5ffe0b1f2e8abea0a88b1674 /lib/kobject_uevent.c
parent00ed8e3dda47f8421b11da17e353d7db8c878121 (diff)
downloadlinux-864062457a2e444227bd368ca5f2a2b740de604f.tar.gz
driver core: fix namespace issue with devices assigned to classes
- uses a kset in "struct class" to keep track of all directories belonging to this class - merges with the /sys/devices/virtual logic. - removes the namespace-dir if the last member of that class leaves the directory. There may be locking or refcounting fixes left, I stopped when it seemed to work with network and sound modules. :) From: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib/kobject_uevent.c')
-rw-r--r--lib/kobject_uevent.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 82fc1794b69..4122f38330d 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -115,6 +115,16 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
return 0;
}
+ /* originating subsystem */
+ if (uevent_ops && uevent_ops->name)
+ subsystem = uevent_ops->name(kset, kobj);
+ else
+ subsystem = kobject_name(&kset->kobj);
+ if (!subsystem) {
+ pr_debug("unset subsytem caused the event to drop!\n");
+ return 0;
+ }
+
/* environment index */
envp = kzalloc(NUM_ENVP * sizeof (char *), GFP_KERNEL);
if (!envp)
@@ -134,12 +144,6 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
goto exit;
}
- /* originating subsystem */
- if (uevent_ops && uevent_ops->name)
- subsystem = uevent_ops->name(kset, kobj);
- else
- subsystem = kobject_name(&kset->kobj);
-
/* event environemnt for helper process only */
envp[i++] = "HOME=/";
envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";