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-rw-r--r--block/blkdebug.c2
-rw-r--r--block/blkverify.c2
-rw-r--r--block/nbd.c2
3 files changed, 3 insertions, 3 deletions
diff --git a/block/blkdebug.c b/block/blkdebug.c
index 0457bf5b66..0759452925 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -305,7 +305,7 @@ static void blkdebug_parse_filename(const char *filename, QDict *options,
 
     if (c != filename) {
         QString *config_path;
-        config_path = qstring_from_substr(filename, 0, c - filename - 1);
+        config_path = qstring_from_substr(filename, 0, c - filename);
         qdict_put(options, "config", config_path);
     }
 
diff --git a/block/blkverify.c b/block/blkverify.c
index da97ee5927..89bf4386e3 100644
--- a/block/blkverify.c
+++ b/block/blkverify.c
@@ -80,7 +80,7 @@ static void blkverify_parse_filename(const char *filename, QDict *options,
     }
 
     /* TODO Implement option pass-through and set raw.filename here */
-    raw_path = qstring_from_substr(filename, 0, c - filename - 1);
+    raw_path = qstring_from_substr(filename, 0, c - filename);
     qdict_put(options, "x-raw", raw_path);
 
     /* TODO Allow multi-level nesting and set file.filename here */
diff --git a/block/nbd.c b/block/nbd.c
index b198ad775f..e87699fb73 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -109,7 +109,7 @@ static int nbd_parse_uri(const char *filename, QDict *options)
         /* strip braces from literal IPv6 address */
         if (uri->server[0] == '[') {
             host = qstring_from_substr(uri->server, 1,
-                                       strlen(uri->server) - 2);
+                                       strlen(uri->server) - 1);
         } else {
             host = qstring_from_str(uri->server);
         }