[PATCH 12/14] submodule: check return value of `submodule_from_path()`

["Johannes Schindelin via GitGitGadget" <gitgitgadget@gmail.com>]

From: Johannes Schindelin <johannes.schindelin@gmx.de>

As pointed out by CodeQL, it could be NULL and we usually check for
that.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 builtin/submodule--helper.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index c1a8029714bf..55826b82407c 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -1934,6 +1934,9 @@ static int determine_submodule_update_strategy(struct repository *r,
 	const char *val;
 	int ret;
 
+	if (!sub)
+		return error(_("could not retrieve submodule information for path '%s'"), path);
+
 	key = xstrfmt("submodule.%s.update", sub->name);
 
 	if (update) {
-- 
gitgitgadget