linux-kernel - [PATCH] uprobes: add missing get_uprobe() in __find

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Date:   Tue,  9 Feb 2021 16:07:11 +0100
From:   Sven Schnelle <svens@...ux.ibm.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     linux-kernel@...r.kernel.org, linux-next@...r.kernel.org,
        Sven Schnelle <svens@...ux.ibm.com>
Subject: [PATCH] uprobes: add missing get_uprobe() in __find_uprobe()

commit c6bc9bd06dff49fa4c("rbtree, uprobes: Use rbtree helpers") from
next-20210208 accidentally removed the refcount increase. Add it again.

Signed-off-by: Sven Schnelle <svens@...ux.ibm.com>
---
 kernel/events/uprobes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 7e15b2efdd87..6addc9780319 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -661,7 +661,7 @@ static struct uprobe *__find_uprobe(struct inode *inode, loff_t offset)
 	struct rb_node *node = rb_find(&key, &uprobes_tree, __uprobe_cmp_key);
 
 	if (node)
-		return __node_2_uprobe(node);
+		return get_uprobe(__node_2_uprobe(node));
 
 	return NULL;
 }
-- 
2.17.1