trace: remove argument from trace_init_file

It is not needed, all the callers are just saving what was
retrieved from -trace and trace_init_file can retrieve it
on its own.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20201102115841.4017692-1-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/qemu-img.c b/qemu-img.c
index c2c56fc..8bdea40 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -5466,7 +5466,6 @@ int main(int argc, char **argv)
     const img_cmd_t *cmd;
     const char *cmdname;
     Error *local_error = NULL;
-    char *trace_file = NULL;
     int c;
     static const struct option long_options[] = {
         {"help", no_argument, 0, 'h'},
@@ -5516,8 +5515,7 @@ int main(int argc, char **argv)
             printf(QEMU_IMG_VERSION);
             return 0;
         case 'T':
-            g_free(trace_file);
-            trace_file = trace_opt_parse(optarg);
+            trace_opt_parse(optarg);
             break;
         }
     }
@@ -5535,7 +5533,7 @@ int main(int argc, char **argv)
     if (!trace_init_backends()) {
         exit(1);
     }
-    trace_init_file(trace_file);
+    trace_init_file();
     qemu_set_log(LOG_TRACE);
 
     /* find the command */