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[Qemu-devel] [PATCH v8 06/20] migration: Make migrate_fd_error() the own


From: Juan Quintela
Subject: [Qemu-devel] [PATCH v8 06/20] migration: Make migrate_fd_error() the owner of the Error
Date: Wed, 13 Sep 2017 12:59:39 +0200

So far, we had to free the error after each caller, so just do it
here.  Once there, tls.c was leaking the error.

Signed-off-by: Juan Quintela <address@hidden>
---
 migration/channel.c   |  1 -
 migration/migration.c | 10 ++++------
 migration/migration.h |  4 ++--
 migration/socket.c    |  1 -
 4 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/migration/channel.c b/migration/channel.c
index 70ec7ea3b7..1dd2ae1530 100644
--- a/migration/channel.c
+++ b/migration/channel.c
@@ -71,7 +71,6 @@ void migration_channel_connect(MigrationState *s,
         migration_tls_channel_connect(s, ioc, hostname, &local_err);
         if (local_err) {
             migrate_fd_error(s, local_err);
-            error_free(local_err);
         }
     } else {
         QEMUFile *f = qemu_fopen_channel_output(ioc);
diff --git a/migration/migration.c b/migration/migration.c
index adc07e442a..b15f0ba876 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -1021,16 +1021,14 @@ static void migrate_fd_cleanup(void *opaque)
     block_cleanup_parameters(s);
 }
 
-void migrate_set_error(MigrationState *s, const Error *error)
+void migrate_set_error(MigrationState *s, Error *error)
 {
     qemu_mutex_lock(&s->error_mutex);
-    if (!s->error) {
-        s->error = error_copy(error);
-    }
+    error_propagate(&s->error, error);
     qemu_mutex_unlock(&s->error_mutex);
 }
 
-void migrate_fd_error(MigrationState *s, const Error *error)
+void migrate_fd_error(MigrationState *s, Error *error)
 {
     trace_migrate_fd_error(error_get_pretty(error));
     assert(s->to_dst_file == NULL);
@@ -1304,7 +1302,7 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk,
     }
 
     if (local_err) {
-        migrate_fd_error(s, local_err);
+        migrate_fd_error(s, error_copy(local_err));
         error_propagate(errp, local_err);
         return;
     }
diff --git a/migration/migration.h b/migration/migration.h
index 9a81b8a70a..7ddb0cdc1a 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -163,8 +163,8 @@ bool  migration_has_all_channels(void);
 
 uint64_t migrate_max_downtime(void);
 
-void migrate_set_error(MigrationState *s, const Error *error);
-void migrate_fd_error(MigrationState *s, const Error *error);
+void migrate_set_error(MigrationState *s, Error *error);
+void migrate_fd_error(MigrationState *s, Error *error);
 
 void migrate_fd_connect(MigrationState *s);
 
diff --git a/migration/socket.c b/migration/socket.c
index dee869044a..2d70747a1a 100644
--- a/migration/socket.c
+++ b/migration/socket.c
@@ -80,7 +80,6 @@ static void socket_outgoing_migration(QIOTask *task,
     if (qio_task_propagate_error(task, &err)) {
         trace_migration_socket_outgoing_error(error_get_pretty(err));
         migrate_fd_error(data->s, err);
-        error_free(err);
     } else {
         trace_migration_socket_outgoing_connected(data->hostname);
         migration_channel_connect(data->s, sioc, data->hostname);
-- 
2.13.5




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