Create a public release_patch() version of the private free_patch()
function added in 13b5af22f39 (apply: move libified code from
builtin/apply.c to apply.{c,h}, 2016-04-22). Unlike the existing
function this one doesn't free() the "struct patch" itself, so we can
use it for variables on the stack.
Use it in range-diff.c to fix a memory leak in common range-diff
invocations, e.g.:
git -P range-diff origin/master origin/next origin/seen
Would emit several errors when compiled with SANITIZE=leak, but now
runs cleanly.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx>
---
apply.c | 7 ++++++-
apply.h | 2 ++
range-diff.c | 1 +
3 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/apply.c b/apply.c
index 0912307bd91..01f91816428 100644
--- a/apply.c
+++ b/apply.c
@@ -219,13 +219,18 @@ static void free_fragment_list(struct fragment *list)
}
}
-static void free_patch(struct patch *patch)
+void release_patch(struct patch *patch)
{
free_fragment_list(patch->fragments);
free(patch->def_name);
free(patch->old_name);
free(patch->new_name);
free(patch->result);
+}
+
+static void free_patch(struct patch *patch)
+{
+ release_patch(patch);
free(patch);
}
diff --git a/apply.h b/apply.h
index 4052da50c06..b9f18ce87d1 100644
--- a/apply.h
+++ b/apply.h
@@ -173,6 +173,8 @@ int parse_git_diff_header(struct strbuf *root,
unsigned int size,
struct patch *patch);
+void release_patch(struct patch *patch);
+
/*
* Some aspects of the apply behavior are controlled by the following
* bits in the "options" parameter passed to apply_all_patches().
diff --git a/range-diff.c b/range-diff.c
index 30a4de5c2d8..b2a2961f521 100644
--- a/range-diff.c
+++ b/range-diff.c
@@ -165,6 +165,7 @@ static int read_patches(const char *range, struct string_list *list,
patch.old_mode, patch.new_mode);
strbuf_addstr(&buf, " ##");
+ release_patch(&patch);
} else if (in_header) {
if (starts_with(line, "Author: ")) {
strbuf_addstr(&buf, " ## Metadata ##\n");
--
2.35.1.1228.g56895c6ee86
