diff --git a/builtin/branch.c b/builtin/branch.c
index 48cac74f97..1f4de92e05 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -504,7 +504,7 @@ static void print_current_branch_name(void)
 	int flags;
 	const char *refname = refs_resolve_ref_unsafe(get_main_ref_store(the_repository),
 						      "HEAD", 0, NULL, &flags);
-	const char *shortname;
+	const char *shortname = shortname;
 	if (!refname)
 		die(_("could not resolve HEAD"));
 	else if (!(flags & REF_ISSYMREF))
diff --git a/builtin/fast-import.c b/builtin/fast-import.c
index ea5ae5196d..6d53e42011 100644
--- a/builtin/fast-import.c
+++ b/builtin/fast-import.c
@@ -1866,7 +1866,7 @@ static void parse_original_identifier(void)
 
 static int parse_data(struct strbuf *sb, uintmax_t limit, uintmax_t *len_res)
 {
-	const char *data;
+	const char *data = data;
 	strbuf_reset(sb);
 
 	if (!skip_prefix(command_buf.buf, "data ", &data))
@@ -2807,7 +2807,7 @@ static void parse_new_commit(const char *arg)
 static void parse_new_tag(const char *arg)
 {
 	static struct strbuf msg = STRBUF_INIT;
-	const char *from;
+	const char *from = from;
 	char *tagger;
 	struct branch *s;
 	struct tag *t;
diff --git a/builtin/repack.c b/builtin/repack.c
index 7608430a37..e4752aae3f 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -1106,7 +1106,7 @@ static int write_cruft_pack(const struct pack_objects_args *args,
 
 static const char *find_pack_prefix(const char *packdir, const char *packtmp)
 {
-	const char *pack_prefix;
+	const char *pack_prefix = pack_prefix;
 	if (!skip_prefix(packtmp, packdir, &pack_prefix))
 		die(_("pack prefix %s does not begin with objdir %s"),
 		    packtmp, packdir);
diff --git a/fetch-pack.c b/fetch-pack.c
index eba9e420ea..f8f318742f 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -1517,7 +1517,7 @@ static void receive_shallow_info(struct fetch_pack_args *args,
 
 	process_section_header(reader, "shallow-info", 0);
 	while (packet_reader_read(reader) == PACKET_READ_NORMAL) {
-		const char *arg;
+		const char *arg = arg;
 		struct object_id oid;
 
 		if (skip_prefix(reader->line, "shallow ", &arg)) {
diff --git a/http-backend.c b/http-backend.c
index 5b4dca65ed..eecba3b44f 100644
--- a/http-backend.c
+++ b/http-backend.c
@@ -259,7 +259,7 @@ static void http_config(void)
 
 static struct rpc_service *select_service(struct strbuf *hdr, const char *name)
 {
-	const char *svc_name;
+	const char *svc_name = svc_name;
 	struct rpc_service *svc = NULL;
 	int i;
 
diff --git a/http.c b/http.c
index 2dea2d03da..c45f91fa4e 100644
--- a/http.c
+++ b/http.c
@@ -2156,7 +2156,7 @@ static int update_url_from_redirect(struct strbuf *base,
 				    const char *asked,
 				    const struct strbuf *got)
 {
-	const char *tail;
+	const char *tail = tail;
 	size_t new_len;
 
 	if (!strcmp(asked, got->buf))
diff --git a/pack-mtimes.c b/pack-mtimes.c
index cdf30b8d2b..49598d4749 100644
--- a/pack-mtimes.c
+++ b/pack-mtimes.c
@@ -29,7 +29,7 @@ static int load_pack_mtimes_file(char *mtimes_file,
 	int fd, ret = 0;
 	struct stat st;
 	uint32_t *data = NULL;
-	size_t mtimes_size, expected_size;
+	size_t mtimes_size = mtimes_size, expected_size;
 	struct mtimes_header header;
 
 	fd = git_open(mtimes_file);
diff --git a/pack-revindex.c b/pack-revindex.c
index fc63aa76a2..7120bed5b1 100644
--- a/pack-revindex.c
+++ b/pack-revindex.c
@@ -206,7 +206,7 @@ static int load_revindex_from_disk(char *revindex_name,
 	int fd, ret = 0;
 	struct stat st;
 	void *data = NULL;
-	size_t revindex_size;
+	size_t revindex_size = revindex_size;
 	struct revindex_header *hdr;
 
 	if (git_env_bool(GIT_TEST_REV_INDEX_DIE_ON_DISK, 0))
diff --git a/refs/packed-backend.c b/refs/packed-backend.c
index c4c1e36aa2..25321a5758 100644
--- a/refs/packed-backend.c
+++ b/refs/packed-backend.c
@@ -677,7 +677,7 @@ static struct snapshot *create_snapshot(struct packed_ref_store *refs)
 
 	/* If the file has a header line, process it: */
 	if (snapshot->buf < snapshot->eof && *snapshot->buf == '#') {
-		char *tmp, *p, *eol;
+		char *tmp, *p = p, *eol;
 		struct string_list traits = STRING_LIST_INIT_NODUP;
 
 		eol = memchr(snapshot->buf, '\n',
diff --git a/reftable/stack.c b/reftable/stack.c
index 737591125e..aa1851fd73 100644
--- a/reftable/stack.c
+++ b/reftable/stack.c
@@ -1231,7 +1231,7 @@ struct segment suggest_compaction_segment(uint64_t *sizes, size_t n,
 					  uint8_t factor)
 {
 	struct segment seg = { 0 };
-	uint64_t bytes;
+	uint64_t bytes = bytes;
 	size_t i;
 
 	if (!factor)
diff --git a/remote-curl.c b/remote-curl.c
index 827bd848ae..4f9808c63f 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -1265,7 +1265,7 @@ static void parse_fetch(struct strbuf *buf)
 	int alloc_heads = 0, nr_heads = 0;
 
 	do {
-		const char *p;
+		const char *p = p;
 		if (skip_prefix(buf->buf, "fetch ", &p)) {
 			const char *name;
 			struct ref *ref;
@@ -1428,7 +1428,7 @@ static void parse_push(struct strbuf *buf)
 	int ret;
 
 	do {
-		const char *arg;
+		const char *arg = arg;
 		if (skip_prefix(buf->buf, "push ", &arg))
 			strvec_push(&specs, arg);
 		else
diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c
index ad24300170..7d3870fe76 100644
--- a/t/helper/test-ref-store.c
+++ b/t/helper/test-ref-store.c
@@ -66,7 +66,7 @@ static unsigned int arg_flags(const char *arg, const char *name,
 
 static const char **get_store(const char **argv, struct ref_store **refs)
 {
-	const char *gitdir;
+	const char *gitdir = gitdir;
 
 	if (!argv[0]) {
 		die("ref store required");
diff --git a/trailer.c b/trailer.c
index 72e5136c73..5056c16644 100644
--- a/trailer.c
+++ b/trailer.c
@@ -508,11 +508,11 @@ static int git_trailer_config(const char *conf_key, const char *value,
 			      const struct config_context *ctx UNUSED,
 			      void *cb UNUSED)
 {
-	const char *trailer_item, *variable_name;
+	const char *trailer_item = trailer_item, *variable_name;
 	struct arg_item *item;
 	struct conf_info *conf;
 	char *name = NULL;
-	enum trailer_info_type type;
+	enum trailer_info_type type = type;
 	int i;
 
 	if (!skip_prefix(conf_key, "trailer.", &trailer_item))
