misc: Remove unused Error variables

There's a few cases which we're passing an Error pointer to a function
only to discard it immediately afterwards without checking it. In
these cases we can simply remove the variable and pass NULL instead.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20170829120836.16091-1-berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/dump.c b/dump.c
index d9090a24cc..a79773d0f7 100644
--- a/dump.c
+++ b/dump.c
@@ -1695,10 +1695,8 @@ static void dump_process(DumpState *s, Error **errp)
 
 static void *dump_thread(void *data)
 {
-    Error *err = NULL;
     DumpState *s = (DumpState *)data;
-    dump_process(s, &err);
-    error_free(err);
+    dump_process(s, NULL);
     return NULL;
 }