From 01ce094adb49ed129305bb3fd72c3d35f5f53fc9 Mon Sep 17 00:00:00 2001
From: Tigran Aivazian <tigran@bibles.org.uk>
Date: Thu, 11 Oct 2012 22:34:18 +0100
Subject: [PATCH] Free raw_image if it is unsupported. If the number of colour
 components is neither 1 nor 3 we should remember to free the buffer holding
 the raw decoded image before returning the error to Lua.

---
 pic.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pic.c b/pic.c
index bad4bfe2d..c0ac8a1fa 100644
--- a/pic.c
+++ b/pic.c
@@ -142,8 +142,10 @@ static int openDocument(lua_State *L) {
 			return luaL_error(L, "Cannot convert to grayscale");
 		else
 			doc->image = gray_image;
-	} else
+	} else {
+		free(raw_image);
 		return luaL_error(L, "Unsupported image format");
+	}
 
 	doc->width = width;
 	doc->height = height;