commit fab4c3c719977205a3f005ddfd7fffbb9c19c587
author Frank Tang <ftang@chromium.org> Wed Oct 30 17:45:22 2019 -0700
committer Frank Yung-Fong Tang <41213225+FrankYFTang@users.noreply.github.com> Tue Nov 05 13:51:35 2019 -0800
tree d616394af1b54f316132ca4773a743ad8ea3a627
parent 3735b6b8c075ea71a26b0222e2e5706e63aabc1c

ICU-20884 initialized buffer uloc_getKeywordValue

icu4c/source/common/uloc.cpp

diff --git a/icu4c/source/common/uloc.cpp b/icu4c/source/common/uloc.cpp
index 6a9bfcf..ea81c0c 100644
--- a/icu4c/source/common/uloc.cpp
+++ b/icu4c/source/common/uloc.cpp
@@ -766,6 +766,9 @@ uloc_getKeywordValue(const char* localeID,
                      char* buffer, int32_t bufferCapacity,
                      UErrorCode* status)
 {
+    if (buffer != nullptr) {
+        buffer[0] = '\0';
+    }
     const char* startSearchHere = NULL;
     const char* nextSeparator = NULL;
     char keywordNameBuffer[ULOC_KEYWORD_BUFFER_LEN];