WifiSupplicantControl: Add missing null check for psk

Test: Compiles
Change-Id: I9968950a73527c23ad576eac8a8405d6aec309b4

1 files changed, 1 insertions, 1 deletions

diff --git a/service/java/com/android/server/wifi/WifiSupplicantControl.java b/service/java/com/android/server/wifi/WifiSupplicantControl.java
index a587fcd76..5b7718b89 100644
--- a/service/java/com/android/server/wifi/WifiSupplicantControl.java
+++ b/service/java/com/android/server/wifi/WifiSupplicantControl.java
@@ -502,7 +502,7 @@ public class WifiSupplicantControl {
         // Add quotes if they're not present in the provided psk.
         // Temporary fix until the HIDL interface is re-enabled.
         String preSharedKey = config.preSharedKey;
-        if (!preSharedKey.startsWith("\"")) {
+        if (!TextUtils.isEmpty(preSharedKey) && !preSharedKey.startsWith("\"")) {
             preSharedKey = "\"" + preSharedKey + "\"";
         }
         // Prevent client screw-up by passing in a WifiConfiguration we gave it