[PATCH 9/9] test-tool delta: fix a memory leak

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Fix a memory leak introduced in a310d434946 ([PATCH] Deltification
library work by Nicolas Pitre., 2005-05-19), as a result we can mark
another test as passing with SANITIZE=leak using
"TEST_PASSES_SANITIZE_LEAK=true".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
 t/helper/test-delta.c                 | 21 ++++++++++++++-------
 t/t5303-pack-corruption-resilience.sh |  2 ++
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/t/helper/test-delta.c b/t/helper/test-delta.c
index e749a49c88e..b15481ea596 100644
--- a/t/helper/test-delta.c
+++ b/t/helper/test-delta.c
@@ -20,8 +20,9 @@ int cmd__delta(int argc, const char **argv)
 {
 	int fd;
 	struct stat st;
-	void *from_buf, *data_buf, *out_buf;
+	void *from_buf = NULL, *data_buf = NULL, *out_buf = NULL;
 	unsigned long from_size, data_size, out_size;
+	int ret = 1;
 
 	if (argc != 5 || (strcmp(argv[1], "-d") && strcmp(argv[1], "-p"))) {
 		fprintf(stderr, "usage: %s\n", usage_str);
@@ -38,21 +39,21 @@ int cmd__delta(int argc, const char **argv)
 	if (read_in_full(fd, from_buf, from_size) < 0) {
 		perror(argv[2]);
 		close(fd);
-		return 1;
+		goto cleanup;
 	}
 	close(fd);
 
 	fd = open(argv[3], O_RDONLY);
 	if (fd < 0 || fstat(fd, &st)) {
 		perror(argv[3]);
-		return 1;
+		goto cleanup;
 	}
 	data_size = st.st_size;
 	data_buf = xmalloc(data_size);
 	if (read_in_full(fd, data_buf, data_size) < 0) {
 		perror(argv[3]);
 		close(fd);
-		return 1;
+		goto cleanup;
 	}
 	close(fd);
 
@@ -66,14 +67,20 @@ int cmd__delta(int argc, const char **argv)
 				      &out_size);
 	if (!out_buf) {
 		fprintf(stderr, "delta operation failed (returned NULL)\n");
-		return 1;
+		goto cleanup;
 	}
 
 	fd = open (argv[4], O_WRONLY|O_CREAT|O_TRUNC, 0666);
 	if (fd < 0 || write_in_full(fd, out_buf, out_size) < 0) {
 		perror(argv[4]);
-		return 1;
+		goto cleanup;
 	}
 
-	return 0;
+	ret = 0;
+cleanup:
+	free(from_buf);
+	free(data_buf);
+	free(out_buf);
+
+	return ret;
 }
diff --git a/t/t5303-pack-corruption-resilience.sh b/t/t5303-pack-corruption-resilience.sh
index 41e6dc4dcfc..2926e8dfc41 100755
--- a/t/t5303-pack-corruption-resilience.sh
+++ b/t/t5303-pack-corruption-resilience.sh
@@ -4,6 +4,8 @@
 #
 
 test_description='resilience to pack corruptions with redundant objects'
+
+TEST_PASSES_SANITIZE_LEAK=true
 . ./test-lib.sh
 
 # Note: the test objects are created with knowledge of their pack encoding
-- 
2.37.0.874.g7d3439f13c4




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