runstate: Initialize Error * to NULL

Based on the description of error_setg(), the local variable err in
qemu_init_subsystems() should be initialized to NULL.

Fixes: efd7ab22fb ("vl: extract qemu_init_subsystems")
Cc: qemu-stable@nongnu.org
Signed-off-by: Peng Liang <liangpeng10@huawei.com>
Message-Id: <20210610131729.3906565-1-liangpeng10@huawei.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/softmmu/runstate.c b/softmmu/runstate.c
index 15640572c0900b5dfd4ddc5404eacaaa3701a019..10d9b7365aa78430266858fb82abc7165398b2a9 100644 (file)
--- a/softmmu/runstate.c
+++ b/softmmu/runstate.c
@@ -747,7 +747,7 @@ static void qemu_run_exit_notifiers(void)
 
 void qemu_init_subsystems(void)
 {
-    Error *err;
+    Error *err = NULL;
 
     os_set_line_buffering();