From c935d0c4501dd96d2a8368d109d1c57bd4683517 Mon Sep 17 00:00:00 2001
From: Songchun Fan <schfan@google.com>
Date: Fri, 14 Aug 2020 11:49:54 -0700
Subject: [PATCH] [adb] fix signature check

BUG: 163543633
Test: atest CtsIncrementalInstallHostTestCases
Change-Id: Ie65d4639d5fb5b2dc100f1d17e3dd1c843510325
---
 adb/client/incremental.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/adb/client/incremental.cpp b/adb/client/incremental.cpp
index 60735f8c5..8ef6afd8a 100644
--- a/adb/client/incremental.cpp
+++ b/adb/client/incremental.cpp
@@ -122,7 +122,7 @@ static unique_fd start_install(const Files& files, const Args& passthrough_args,
         }
 
         auto [signature_fd, signature] = read_and_encode_signature(st.st_size, file, silent);
-        if (signature_fd.ok() && signature.empty()) {
+        if (!signature_fd.ok() || signature.empty()) {
             return {};
         }