[PATCH] selftests/net: initialize char variable to null

[Ankit Khushwaha]

char variable in 'so_txtime.c' & 'txtimestamp.c' left uninitilized
by when switch default case taken. raises following warning.

        txtimestamp.c:240:2: warning: variable 'tsname' is used uninitialized
        whenever switch default is taken [-Wsometimes-uninitialized]

        so_txtime.c:210:3: warning: variable 'reason' is used uninitialized
        whenever switch default is taken [-Wsometimes-uninitialized]

initialize these variables to NULL to fix this.

Signed-off-by: Ankit Khushwaha <ankitkhushwaha.li...@gmail.com>
---
 tools/testing/selftests/net/so_txtime.c   | 2 +-
 tools/testing/selftests/net/txtimestamp.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/so_txtime.c 
b/tools/testing/selftests/net/so_txtime.c
index 8457b7ccbc09..b76df1efc2ef 100644
--- a/tools/testing/selftests/net/so_txtime.c
+++ b/tools/testing/selftests/net/so_txtime.c
@@ -174,7 +174,7 @@ static int do_recv_errqueue_timeout(int fdt)
        msg.msg_controllen = sizeof(control);

        while (1) {
-               const char *reason;
+               const char *reason = NULL;

                ret = recvmsg(fdt, &msg, MSG_ERRQUEUE);
                if (ret == -1 && errno == EAGAIN)
diff --git a/tools/testing/selftests/net/txtimestamp.c 
b/tools/testing/selftests/net/txtimestamp.c
index dae91eb97d69..bcc14688661d 100644
--- a/tools/testing/selftests/net/txtimestamp.c
+++ b/tools/testing/selftests/net/txtimestamp.c
@@ -217,7 +217,7 @@ static void print_timestamp_usr(void)
 static void print_timestamp(struct scm_timestamping *tss, int tstype,
                            int tskey, int payload_len)
 {
-       const char *tsname;
+       const char *tsname = NULL;

        validate_key(tskey, tstype);

--
2.52.0