[PATCH RESEND] perf data: close all files in close_dir

[Riccardo Mancini]

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.

Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Fixes: 145520631130bd64 ("perf data: Add perf_data__(create_dir|close_dir) functions")
Signed-off-by: Riccardo Mancini <rickyman7@xxxxxxxxx>
Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
Hi Arnaldo, 

I think this patch might have gone lost in the mailbox, submerged by
other mails.
I'll take advantage of the resend to add the missing 'Fixes:' tag.

I didn't flag this as v2 since it contains no logical change, let me
know if doing so would've been better.

Changes from first send: 
 - collected ack from Namhyung
 - added Fixes: tag

Original: https://lkml.kernel.org/lkml/20210621214220.167927-1-rickyman7@xxxxxxxxx/

Thanks,
Riccardo
---
 tools/perf/util/data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index 8fca4779ae6a8e90..70b91ce35178c5f9 100644
--- 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);
 	}
-- 
2.23.0