diff.c: plug a memory leak in an error path

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/diff.c b/diff.c
index d24bff1e46..f0b580c150 100644
--- a/diff.c
+++ b/diff.c
@@ -3590,6 +3590,7 @@ static char *run_textconv(const char *pgm, struct diff_filespec *spec,
 	if (start_command(&child) != 0 ||
 	    strbuf_read(&buf, child.out, 0) < 0 ||
 	    finish_command(&child) != 0) {
+		strbuf_release(&buf);
 		remove_tempfile();
 		error("error running textconv command '%s'", pgm);
 		return NULL;