[PATCH v3 11/13] log: fix memory leak in open_next_file()

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From: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>

Noticed-by: Jeff King <peff@xxxxxxxx>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
 builtin/log.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/builtin/log.c b/builtin/log.c
index 26d6a3cf14..f075838df9 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -842,8 +842,10 @@ static int open_next_file(struct commit *commit, const char *subject,
 	if (output_directory) {
 		strbuf_addstr(&filename, output_directory);
 		if (filename.len >=
-		    PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len)
+		    PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len) {
+			strbuf_release(&filename);
 			return error(_("name of output directory is too long"));
+		}
 		strbuf_complete(&filename, '/');
 	}
 
@@ -857,9 +859,11 @@ static int open_next_file(struct commit *commit, const char *subject,
 	if (!quiet)
 		printf("%s\n", filename.buf + outdir_offset);
 
-	if ((rev->diffopt.file = fopen(filename.buf, "w")) == NULL)
-		return error_errno(_("Cannot open patch file %s"),
-				   filename.buf);
+	if ((rev->diffopt.file = fopen(filename.buf, "w")) == NULL) {
+		error_errno(_("Cannot open patch file %s"), filename.buf);
+		strbuf_release(&filename);
+		return -1;
+	}
 
 	strbuf_release(&filename);
 	return 0;
-- 
2.13.0-491-g71cfeddc25




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