X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fkobject_uevent.c;h=2fa545a631607dc1d0498a7c2bff592ad7d115bb;hb=7cece14acd063dd1c4e8933461d44ec6a5a5517b;hp=5886147252d0d643598e408b63bf193aa49b5f34;hpb=43cd73658d8077ee6899b0b5029aad0cba1e9f92;p=linux-2.6

diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 5886147252..2fa545a631 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -15,11 +15,13 @@
  */
 
 #include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/kobject.h>
+#include <linux/module.h>
+
 #include <linux/socket.h>
 #include <linux/skbuff.h>
 #include <linux/netlink.h>
-#include <linux/string.h>
-#include <linux/kobject.h>
 #include <net/sock.h>
 
 
@@ -55,7 +57,7 @@ int kobject_action_type(const char *buf, size_t count,
 	enum kobject_action action;
 	int ret = -EINVAL;
 
-	if (count && buf[count-1] == '\n')
+	if (count && (buf[count-1] == '\n' || buf[count-1] == '\0'))
 		count--;
 
 	if (!count)
@@ -98,7 +100,8 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 	int i = 0;
 	int retval = 0;
 
-	pr_debug("%s\n", __FUNCTION__);
+	pr_debug("kobject: '%s' (%p): %s\n",
+		 kobject_name(kobj), kobj, __func__);
 
 	/* search the kset we belong to */
 	top_kobj = kobj;
@@ -106,7 +109,9 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 		top_kobj = top_kobj->parent;
 
 	if (!top_kobj->kset) {
-		pr_debug("kobject attempted to send uevent without kset!\n");
+		pr_debug("kobject: '%s' (%p): %s: attempted to send uevent "
+			 "without kset!\n", kobject_name(kobj), kobj,
+			 __func__);
 		return -EINVAL;
 	}
 
@@ -116,7 +121,9 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 	/* skip the event, if the filter returns zero. */
 	if (uevent_ops && uevent_ops->filter)
 		if (!uevent_ops->filter(kset, kobj)) {
-			pr_debug("kobject filter function caused the event to drop!\n");
+			pr_debug("kobject: '%s' (%p): %s: filter function "
+				 "caused the event to drop!\n",
+				 kobject_name(kobj), kobj, __func__);
 			return 0;
 		}
 
@@ -126,7 +133,9 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 	else
 		subsystem = kobject_name(&kset->kobj);
 	if (!subsystem) {
-		pr_debug("unset subsystem caused the event to drop!\n");
+		pr_debug("kobject: '%s' (%p): %s: unset subsystem caused the "
+			 "event to drop!\n", kobject_name(kobj), kobj,
+			 __func__);
 		return 0;
 	}
 
@@ -166,12 +175,24 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 	if (uevent_ops && uevent_ops->uevent) {
 		retval = uevent_ops->uevent(kset, kobj, env);
 		if (retval) {
-			pr_debug ("%s - uevent() returned %d\n",
-				  __FUNCTION__, retval);
+			pr_debug("kobject: '%s' (%p): %s: uevent() returned "
+				 "%d\n", kobject_name(kobj), kobj,
+				 __func__, retval);
 			goto exit;
 		}
 	}
 
+	/*
+	 * Mark "add" and "remove" events in the object to ensure proper
+	 * events to userspace during automatic cleanup. If the object did
+	 * send an "add" event, "remove" will automatically generated by
+	 * the core, if not already done by the caller.
+	 */
+	if (action == KOBJ_ADD)
+		kobj->state_add_uevent_sent = 1;
+	else if (action == KOBJ_REMOVE)
+		kobj->state_remove_uevent_sent = 1;
+
 	/* we will send an event, so request a new sequence number */
 	spin_lock(&sequence_lock);
 	seq = ++uevent_seqnum;
@@ -219,11 +240,12 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 		retval = add_uevent_var(env, "HOME=/");
 		if (retval)
 			goto exit;
-		retval = add_uevent_var(env, "PATH=/sbin:/bin:/usr/sbin:/usr/bin");
+		retval = add_uevent_var(env,
+					"PATH=/sbin:/bin:/usr/sbin:/usr/bin");
 		if (retval)
 			goto exit;
 
-		call_usermodehelper (argv[0], argv, env->envp, UMH_WAIT_EXEC);
+		call_usermodehelper(argv[0], argv, env->envp, UMH_WAIT_EXEC);
 	}
 
 exit:
@@ -231,7 +253,6 @@ exit:
 	kfree(env);
 	return retval;
 }
-
 EXPORT_SYMBOL_GPL(kobject_uevent_env);
 
 /**
@@ -247,7 +268,6 @@ int kobject_uevent(struct kobject *kobj, enum kobject_action action)
 {
 	return kobject_uevent_env(kobj, action, NULL);
 }
-
 EXPORT_SYMBOL_GPL(kobject_uevent);
 
 /**