From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Wed, 10 Apr 2019 20:25:20 +0000 (-0400)
Subject: Fix tests: NULL pointer dereference in ltt_ust_context unit tests
X-Git-Tag: v2.12.0-rc1~616
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=77f5299fdcfb59efd50f3340e1e063adcb7dc421;p=lttng-tools.git

Fix tests: NULL pointer dereference in ltt_ust_context unit tests

The check for the expected context's type must be skipped when
trace_ust_create_context() fails. Otherwise, a NULL pointer
dereference will occur.

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/tests/unit/test_ust_data.c b/tests/unit/test_ust_data.c
index cea322d32..61e2c3c6e 100644
--- a/tests/unit/test_ust_data.c
+++ b/tests/unit/test_ust_data.c
@@ -277,8 +277,12 @@ static void test_create_ust_context(void)
 	uctx = trace_ust_create_context(&ectx);
 	ok(uctx != NULL, "Create UST context");
 
-	ok((int) uctx->ctx.ctx == LTTNG_UST_CONTEXT_VTID,
-	   "Validate UST context");
+	if (uctx) {
+		ok((int) uctx->ctx.ctx == LTTNG_UST_CONTEXT_VTID,
+		   "Validate UST context");
+	} else {
+		skip(1, "Skipping UST context validation as creation failed");
+	}
 	free(uctx);
 }