main: Fix memory leak in _mesa_make_extension_string()

I forgot to free the string returned by strdup().

Note: This is a candidate for the stable branches.
CC: Johannes Obermayr <johannesobermayr@gmx.de>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>

diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 8c262af081f8f8c784071853df9af1a63c75cc5e..3ce4cd5596ce9e98b7d45dc24d97744fed1555d1 100644 (file)
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -750,6 +750,8 @@ get_extension_override( struct gl_context *ctx )
       }
    }
 
+   free(env);
+
    /* Remove trailing space. */
    len = strlen(extra_exts);
    if (extra_exts[len - 1] == ' ')