[PATCH v3 2/2] perf pmu: Fix a few potential fd leaks

[Ian Rogers]

Ensure fd is closed on error paths.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
 tools/perf/util/pmu.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 96ef317bac41..9eedbfc9e863 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -494,9 +494,13 @@ static int pmu_aliases_parse(int dirfd, struct list_head *head)
 			continue;
 
 		fd = openat(dirfd, name, O_RDONLY);
+		if (fd == -1) {
+			pr_debug("Cannot open %s\n", name);
+			continue;
+		}
 		file = fdopen(fd, "r");
 		if (!file) {
-			pr_debug("Cannot open %s\n", name);
+			close(fd);
 			continue;
 		}
 
@@ -1882,9 +1886,13 @@ int perf_pmu__caps_parse(struct perf_pmu *pmu)
 			continue;
 
 		fd = openat(caps_fd, name, O_RDONLY);
+		if (fd == -1)
+			continue;
 		file = fdopen(fd, "r");
-		if (!file)
+		if (!file) {
+			close(fd);
 			continue;
+		}
 
 		if (!fgets(value, sizeof(value), file) ||
 		    (perf_pmu__new_caps(&pmu->caps, name, value) < 0)) {
-- 
2.40.0.348.gf938b09366-goog