[PATCH] uprobes: add missing get_uprobe() in __find_uprobe()

[Sven Schnelle]

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

Signed-off-by: Sven Schnelle <sv...@linux.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