qemu-char: Add fe_open tracking
Add tracking of the fe_open state to struct CharDriverState.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364292483-16564-4-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/qemu-char.c b/qemu-char.c
index 345fd67..c9890ad 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -3412,6 +3412,10 @@
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_close(struct CharDriverState *chr)
{
+ if (!chr->fe_open) {
+ return;
+ }
+ chr->fe_open = 0;
if (chr->chr_guest_close) {
chr->chr_guest_close(chr);
}