[PATCH] utrace_add_engine: add missing 'else' after 'if (utrace->reap)'

[Veaceslav Falico]

In function utrace_add_engine is a missing else while verifying if
utrace_release_task was already called, which can lead to adding to a
reaping utrace engine.

Signed-off-by: Veaceslav Falico <vfalico at redhat.com>
---
diff --git a/kernel/utrace.c b/kernel/utrace.c
index 906145e..8fc1867 100644
--- a/kernel/utrace.c
+++ b/kernel/utrace.c
@@ -153,7 +153,7 @@ static int utrace_add_engine(struct task_struct *target,
 		 * Already entered utrace_release_task(), cannot attach now.
 		 */
 		ret = -ESRCH;
-	} if ((flags & UTRACE_ATTACH_EXCLUSIVE) &&
+	} else if ((flags & UTRACE_ATTACH_EXCLUSIVE) &&
 	    unlikely(matching_engine(utrace, flags, ops, data))) {
 		ret = -EEXIST;
 	} else {