perf data: Close all files in close_dir()

When using 'perf report' in directory mode, the first file is not closed
on exit, causing a memory leak.

The problem is caused by the iterating variable never reaching 0.

Fixes: 145520631130bd64 ("perf data: Add perf_data__(create_dir|close_dir) functions")
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: http://lore.kernel.org/lkml/20210716141122.858082-1-rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index a9c102e..f5d260b 100644 (file)
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -20,7 +20,7 @@
 
 static void close_dir(struct perf_data_file *files, int nr)
 {
-       while (--nr >= 1) {
+       while (--nr >= 0) {
                close(files[nr].fd);
                zfree(&files[nr].path);
        }