[PATCH] Don't reference NULL klist pointer in klist_remove().

[Greg KH]

[PATCH] Don't reference NULL klist pointer in klist_remove().

Signed-off-by: Patrick Mochel <mochel@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

diff -Nru a/lib/klist.c b/lib/klist.c

---
commit 0293a509405dccecc30783a5d729d615b68d6a77
tree 69856eefdaba010e35dd7fbe2e5bb152a110d186
parent 0956af53afea290c5676c75249fc2c180d831375
author mochel@xxxxxxxxxxxxxxxxxx <mochel@xxxxxxxxxxxxxxxxxx> Thu, 24 Mar 2005 18:59:59 -0800
committer Greg Kroah-Hartman <gregkh@xxxxxxx> Mon, 20 Jun 2005 15:15:19 -0700

 lib/klist.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/klist.c b/lib/klist.c
--- a/lib/klist.c
+++ b/lib/klist.c
@@ -145,9 +145,10 @@ EXPORT_SYMBOL_GPL(klist_del);
 
 void klist_remove(struct klist_node * n)
 {
-	spin_lock(&n->n_klist->k_lock);
+	struct klist * k = n->n_klist;
+	spin_lock(&k->k_lock);
 	klist_dec_and_del(n);
-	spin_unlock(&n->n_klist->k_lock);
+	spin_unlock(&k->k_lock);
 	wait_for_completion(&n->n_removed);
 }
 

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