[PATCH 3/8] trace: fix leak with regexp

[David Marchand]

The precompiled buffer initialised in regcomp must be freed before
leaving rte_trace_regexp.

Fixes: 84c4fae4628f ("trace: implement operation APIs")
Cc: stable at dpdk.org

Signed-off-by: David Marchand <david.marchand at redhat.com>
---
 lib/eal/common/eal_common_trace.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/lib/eal/common/eal_common_trace.c b/lib/eal/common/eal_common_trace.c
index 1db28a441d..c835b0d16e 100644
--- a/lib/eal/common/eal_common_trace.c
+++ b/lib/eal/common/eal_common_trace.c
@@ -210,15 +210,18 @@ rte_trace_regexp(const char *regex, bool enable)
 		return -EINVAL;
 
 	STAILQ_FOREACH(tp, &tp_list, next) {
-		if (regexec(&r, tp->name, 0, NULL, 0) == 0) {
-			if (enable)
-				rc = rte_trace_point_enable(tp->handle);
-			else
-				rc = rte_trace_point_disable(tp->handle);
-			found = 1;
+		if (regexec(&r, tp->name, 0, NULL, 0) != 0)
+			continue;
+
+		if (enable)
+			rc = rte_trace_point_enable(tp->handle);
+		else
+			rc = rte_trace_point_disable(tp->handle);
+		if (rc < 0) {
+			found = 0;
+			break;
 		}
-		if (rc < 0)
-			return rc;
+		found = 1;
 	}
 	regfree(&r);
 
-- 
2.37.3