From 9ec3fc5bc0c03a40e2e345e7e37b4f904a1facef Mon Sep 17 00:00:00 2001
From: Colin Clark <colin.clark@cclark.uk>
Date: Mon, 5 Feb 2024 10:12:33 +0000
Subject: [PATCH] Fix clang-tidy: readability-non-const-parameter (4)

---
 src/exif.h   | 2 +-
 src/exiv2.cc | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/exif.h b/src/exif.h
index 56e4e1b5..f32e733f 100644
--- a/src/exif.h
+++ b/src/exif.h
@@ -167,7 +167,7 @@ void exif_set_image_comment(FileData* fd, const gchar* comment);
 
 /*raw support */
 guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width, gint requested_height);
-void exif_free_preview(guchar *buf);
+void exif_free_preview(const guchar *buf);
 
 gchar *metadata_file_info(FileData *fd, const gchar *key, MetadataFormat format);
 gchar *metadata_lua_info(FileData *fd, const gchar *key, MetadataFormat format);
diff --git a/src/exiv2.cc b/src/exiv2.cc
index e16d89b7..580aba67 100644
--- a/src/exiv2.cc
+++ b/src/exiv2.cc
@@ -1235,9 +1235,9 @@ guchar *exif_get_preview(ExifData *exif, guint *data_len, gint requested_width,
 	}
 }
 
-void exif_free_preview(guchar *buf)
+void exif_free_preview(const guchar *buf)
 {
-	delete[] static_cast<Exiv2::byte*>(buf);
+delete[] static_cast<const Exiv2::byte*>(buf);
 }
 #endif
 
-- 
2.20.1