media_index: Fix process_description_file() memory leak of file_id_persist.

........

Merged revisions 399596 from http://svn.asterisk.org/svn/asterisk/branches/12

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@399597 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/media_index.c b/main/media_index.c
index 943296f..605cee9 100644 (file)
--- a/main/media_index.c
+++ b/main/media_index.c
@@ -439,6 +439,7 @@ static int process_description_file(struct ast_media_index *index,
                        /* if there's text in cumulative_description, archive it and start anew */
                        if (file_id_persist && !ast_strlen_zero(ast_str_buffer(cumulative_description))) {
                                RAII_VAR(struct media_variant *, variant, NULL, ao2_cleanup);
+
                                variant = find_variant(index, file_id_persist, variant_str);
                                if (!variant) {
                                        variant = alloc_variant(index, file_id_persist, variant_str);
@@ -451,11 +452,10 @@ static int process_description_file(struct ast_media_index *index,
                                ast_string_field_set(variant, description, ast_str_buffer(cumulative_description));
 
                                ast_str_reset(cumulative_description);
-                               ast_free(file_id_persist);
-                               file_id_persist = NULL;
                        }
 
-                       file_id_persist = strdup(file_identifier);
+                       ast_free(file_id_persist);
+                       file_id_persist = ast_strdup(file_identifier);
                        description = ast_skip_blanks(description);
                        ast_str_set(&cumulative_description, 0, "%s", description);
                }
@@ -464,6 +464,7 @@ static int process_description_file(struct ast_media_index *index,
        /* handle the last one */
        if (file_id_persist && !ast_strlen_zero(ast_str_buffer(cumulative_description))) {
                RAII_VAR(struct media_variant *, variant, NULL, ao2_cleanup);
+
                variant = find_variant(index, file_id_persist, variant_str);
                if (!variant) {
                        variant = alloc_variant(index, file_id_persist, variant_str);
@@ -471,12 +472,12 @@ static int process_description_file(struct ast_media_index *index,
 
                if (variant) {
                        ast_string_field_set(variant, description, ast_str_buffer(cumulative_description));
-                       ast_free(file_id_persist);
                } else {
                        res = -1;
                }
        }
 
+       ast_free(file_id_persist);
        fclose(f);
        return res;
 }