coverage.c: suppress a warning

* ext/coverage/coverage.c (coverage_clear_result_i): use local
  variable coverage.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49591 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/ext/coverage/coverage.c b/ext/coverage/coverage.c
index af0cb87c66..ed4a69d3db 100644
--- a/ext/coverage/coverage.c
+++ b/ext/coverage/coverage.c
@@ -36,7 +36,7 @@ static int
 coverage_clear_result_i(st_data_t key, st_data_t val, st_data_t h)
 {
     VALUE coverage = (VALUE)val;
-    rb_ary_clear((VALUE)val);
+    rb_ary_clear(coverage);
     return ST_CONTINUE;
 }