[PATCH] uprobes: don't put NULL pointer in uprobe_register()

[Sebastian Andrzej Siewior]

alloc_uprobe() might return a NULL pointer, put_uprobe() can't deal with
this.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
 kernel/events/uprobes.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 7b3112c..30f3e23 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -897,7 +897,8 @@ int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *
 	}
 
 	mutex_unlock(uprobes_hash(inode));
-	put_uprobe(uprobe);
+	if (uprobe)
+		put_uprobe(uprobe);
 
 	return ret;
 }
-- 
1.7.10.4

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