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authorSteven Rostedt <srostedt@redhat.com>2012-03-21 16:03:36 -0400
committerSteven Rostedt <rostedt@goodmis.org>2012-06-19 13:52:05 -0400
commit86e5be9b38d8f45ced4ee8f9ecb49b2ae81ad728 (patch)
treebfab34cd6845c8d0dfa0a9d9a7a11a4a4a83e2b8
parenta5c75ff33362844d37757fe87cdd6a7e07f2072f (diff)
Revert "kprobes: adjust "fix a memory leak in function pre_handler_kretprobe()""
This reverts commit b8a0040ef7112439ad2efac6f1a79aa842b5924f. As pointed out by John Kacur, the patch breaks 3.0-rt. Because rt pulls in 7b8d0e5, the above fix which comes from v3.0.24 should not be applied. kretprobe is a raw_spinlock_t for real-time. Before the revert we get the following compile errors kernel/kprobes.c:1664: warning: passing argument 1 of 'rt_spin_lock' from incompatible pointer type kernel/kprobes.c:1666: warning: passing argument 1 of 'rt_spin_unlock' from incompatible pointer type Signed-off-by: John Kacur <jkacur@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
-rw-r--r--kernel/kprobes.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index a7dcf069d87b..9cdbf26e50e3 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1661,9 +1661,9 @@ static int __kprobes pre_handler_kretprobe(struct kprobe *p,
ri->task = current;
if (rp->entry_handler && rp->entry_handler(ri, regs)) {
- spin_lock_irqsave(&rp->lock, flags);
+ raw_spin_lock_irqsave(&rp->lock, flags);
hlist_add_head(&ri->hlist, &rp->free_instances);
- spin_unlock_irqrestore(&rp->lock, flags);
+ raw_spin_unlock_irqrestore(&rp->lock, flags);
return 0;
}