[FFmpeg-cvslog] avutil/tree: clean up pointer incompatibility warnings

[Ganesh Ajjanagadde]

ffmpeg | branch: master | Ganesh Ajjanagadde <gajjanagadde at gmail.com> | Sun Oct 25 12:41:48 2015 -0400| [bbd6bc6bd0889627a3bd70e14005664e06d466bc] | committer: Ganesh Ajjanagadde

avutil/tree: clean up pointer incompatibility warnings

Commit 7c8fcbbde3a299096974f9061c8b5be0e526f4c2 introduced some warnings
that get triggered on the test build. This should fix them.

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bbd6bc6bd0889627a3bd70e14005664e06d466bc
---

 libavutil/tree.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavutil/tree.c b/libavutil/tree.c
index 0a69ea9..2495cdf 100644
--- a/libavutil/tree.c
+++ b/libavutil/tree.c
@@ -202,9 +202,9 @@ static void print(AVTreeNode *t, int depth)
         av_log(NULL, AV_LOG_ERROR, "NULL\n");
 }
 
-static int cmp(void *a, const void *b)
+static int cmp(const void *a, const void *b)
 {
-    return (uint8_t *) a - (const uint8_t *) b;
+    return (const uint8_t *) a - (const uint8_t *) b;
 }
 
 int main(int argc, char **argv)