From 82d40ad07594df2d6fc1f201c592482af0e56285 Mon Sep 17 00:00:00 2001
From: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Date: Mon, 31 Mar 2014 15:25:11 +0300
Subject: [PATCH] android/avrcp: Fix clang warning

Check len before memcpy(). Fixes:
...
android/avrcp-lib.c:885:3: warning: Null pointer passed as an argument
to a 'nonnull' parameter
                memcpy(&ptr[4], text[i], len);
                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...
---
 android/avrcp-lib.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/android/avrcp-lib.c b/android/avrcp-lib.c
index ec5ffdb75..c01ccbb21 100644
--- a/android/avrcp-lib.c
+++ b/android/avrcp-lib.c
@@ -1964,7 +1964,10 @@ int avrcp_get_player_attribute_text_rsp(struct avrcp *session,
 		ptr[0] = attrs[i];
 		put_be16(AVRCP_CHARSET_UTF8, &ptr[1]);
 		ptr[3] = len;
-		memcpy(&ptr[4], text[i], len);
+
+		if (len)
+			memcpy(&ptr[4], text[i], len);
+
 		ptr += 4 + len;
 		length += 4 + len;
 	}
-- 
2.47.3