xz: Rename chain_idx to chain_num

(cherry picked from commit ec82a49c3553f7206104582dbfb8b64fa433b491)

diff --git a/src/xz/coder.c b/src/xz/coder.c
index 0d03dc10aa493c1c2b5c1eea72b705258063c7c4..0a9aedbb48751a92ebaddd585c3ba593748bb1b7 100644 (file)
--- a/src/xz/coder.c
+++ b/src/xz/coder.c
@@ -1110,9 +1110,9 @@ split_block(uint64_t *block_remaining,
                        // Update the filters if needed.
                        if (opt_block_list[*list_pos - 1].chain_num
                                != opt_block_list[*list_pos].chain_num) {
-                               const unsigned chain_idx
+                               const unsigned chain_num
                                        = opt_block_list[*list_pos].chain_num;
-                               const lzma_filter *next = chains[chain_idx];
+                               const lzma_filter *next = chains[chain_num];
                                const lzma_ret ret = lzma_filters_update(
                                                &strm, next);
 
@@ -1128,7 +1128,7 @@ split_block(uint64_t *block_remaining,
                                        message_fatal(
                                                _("Error changing to "
                                                "filter chain %u: %s"),
-                                               chain_idx,
+                                               chain_num,
                                                message_strm(ret));
                                }
                        }