[PATCH] perf pmu: Fix a potential memory leak in perf_pmu__lookup()

[Christophe JAILLET]

The commit in Fixes has reordered some code, but missed an error handling
path.

'goto err' now, in order to avoid a memory leak in case of error.

Fixes: f63a536f03a2 ("perf pmu: Merge JSON events with sysfs at load time")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
 tools/perf/util/pmu.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index bb2ca29cd7bd..8dfce84ad9fe 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1018,10 +1018,9 @@ struct perf_pmu *perf_pmu__lookup(struct list_head *pmus, int dirfd, const char
 	 * type value and format definitions. Load both right
 	 * now.
 	 */
-	if (pmu_format(pmu, dirfd, name)) {
-		free(pmu);
-		return NULL;
-	}
+	if (pmu_format(pmu, dirfd, name))
+		goto err;
+
 	pmu->is_core = is_pmu_core(name);
 	pmu->cpus = pmu_cpumask(dirfd, name, pmu->is_core);
 
-- 
2.34.1