From be8479c9873315afcf6b86f0b1bb79052a23b363 Mon Sep 17 00:00:00 2001
From: Patrick Steinhardt <ps@pks.im>
Date: Mon, 22 Feb 2016 14:01:50 +0100
Subject: [PATCH] diff_print: assert patch is non-NULL

When invoking `diff_print_info_init_frompatch` it is obvious that
the patch should be non-NULL. We explicitly check if the variable
is set and continue afterwards, happily dereferencing the
potential NULL-pointer.

Fix this by instead asserting that patch is set. This also
silences Coverity.
---
 src/diff_print.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/diff_print.c b/src/diff_print.c
index bc2d6fab0..dae9e341d 100644
--- a/src/diff_print.c
+++ b/src/diff_print.c
@@ -92,7 +92,11 @@ static int diff_print_info_init_frompatch(
 	git_diff_line_cb cb,
 	void *payload)
 {
-	git_repository *repo = patch && patch->diff ? patch->diff->repo : NULL;
+	git_repository *repo;
+
+	assert(patch);
+
+	repo = patch->diff ? patch->diff->repo : NULL;
 
 	memset(pi, 0, sizeof(diff_print_info));