summary refs log tree commit diff stats
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--include/char/char.h1
-rw-r--r--qemu-char.c8
2 files changed, 9 insertions, 0 deletions
diff --git a/include/char/char.h b/include/char/char.h
index e9d2c108a8..dbb1b89f8c 100644
--- a/include/char/char.h
+++ b/include/char/char.h
@@ -75,6 +75,7 @@ struct CharDriverState {
     char *label;
     char *filename;
     int be_open;
+    int fe_open;
     int avail_connections;
     QemuOpts *opts;
     QTAILQ_ENTRY(CharDriverState) next;
diff --git a/qemu-char.c b/qemu-char.c
index 345fd67fca..c9890ad20f 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -3412,6 +3412,10 @@ void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo)
 
 void qemu_chr_fe_open(struct CharDriverState *chr)
 {
+    if (chr->fe_open) {
+        return;
+    }
+    chr->fe_open = 1;
     if (chr->chr_guest_open) {
         chr->chr_guest_open(chr);
     }
@@ -3419,6 +3423,10 @@ void qemu_chr_fe_open(struct CharDriverState *chr)
 
 void qemu_chr_fe_close(struct CharDriverState *chr)
 {
+    if (!chr->fe_open) {
+        return;
+    }
+    chr->fe_open = 0;
     if (chr->chr_guest_close) {
         chr->chr_guest_close(chr);
     }