Bluetooth: Fix compiler warning with selftest duration calculation

  CC      net/bluetooth/selftest.o
net/bluetooth/selftest.c: In function ‘bt_selftest_init’:
net/bluetooth/selftest.c:246:3: warning: ‘duration’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   snprintf(test_ecdh_buffer, sizeof(test_ecdh_buffer),
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     "PASS (%llu usecs)\n", duration);
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/bluetooth/selftest.c:203:21: note: ‘duration’ was declared here
  unsigned long long duration;
                     ^~~~~~~~

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

diff --git a/net/bluetooth/selftest.c b/net/bluetooth/selftest.c
index 2d1519d0affa154a9ac3fb7f42b3e8afa43604cf..03e3c89c3046f280fcfe92ee89b3241b19e02cbf 100644 (file)
--- a/net/bluetooth/selftest.c
+++ b/net/bluetooth/selftest.c
@@ -200,7 +200,7 @@ static int __init test_ecdh(void)
 {
        struct crypto_kpp *tfm;
        ktime_t calltime, delta, rettime;
-       unsigned long long duration;
+       unsigned long long duration = 0;
        int err;
 
        calltime = ktime_get();