[PATCH] credentials: unable to connect to cache daemon

Error out if we just spawned the daemon and yet we cannot connect.

And always release the string buffer.

Signed-off-by: Clemens Buchacher <redacted>
---

Hi Jeff,

I wrote this while debugging why t0301-credential-cache.sh failed after
I enabled cleanup_children by default. This error condition turned out
not to be the problem, and this patch would not have helped in debugging
this case. But I think it makes sense anyways.

 credential-cache.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/credential-cache.c b/credential-cache.c
index dc98372..8f25c06 100644
--- a/credential-cache.c
+++ b/credential-cache.c

@@ -71,11 +71,10 @@ static void do_cache(const char *socket, const char *action, int timeout,
 			die_errno("unable to relay credential");
 	}
 
-	if (!send_request(socket, &buf))
-		return;
-	if (flags & FLAG_SPAWN) {
+	if (send_request(socket, &buf) < 0 && flags & FLAG_SPAWN) {
 		spawn_daemon(socket);
-		send_request(socket, &buf);
+		if (send_request(socket, &buf) < 0)
+			die_errno("unable to connect to cache daemon");
 	}
 	strbuf_release(&buf);
 }

-- 
1.7.8