[PATCH v1] locking/ww_mutex: Prevent read of uninitialized memory

[Robert Foss]

abba.result is potentially uninitialized, but read during one
error condition.

On "missed ABBA deadlock" abba.result is read, but not initialized
in all situations.

Detected by CoverityScan, CID#1402035 ("Uninitialized scalar variable")

Signed-off-by: Robert Foss <robert.foss@xxxxxxxxxxxxx>
---
 kernel/locking/test-ww_mutex.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/locking/test-ww_mutex.c b/kernel/locking/test-ww_mutex.c
index da6c9a34f62f..d11ad012bae6 100644
--- a/kernel/locking/test-ww_mutex.c
+++ b/kernel/locking/test-ww_mutex.c
@@ -196,7 +196,7 @@ static void test_abba_work(struct work_struct *work)
 
 static int test_abba(bool resolve)
 {
-	struct test_abba abba;
+	struct test_abba abba = { 0 };
 	struct ww_acquire_ctx ctx;
 	int err, ret;
 
-- 
2.11.0.453.g787f75f05