From c1b71a1df682fc49f91218130b1837d6d91dcb57 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 19 Nov 2011 10:22:47 +0100 Subject: usb-redir: Don't try to write to the chardev after a close event Since we handle close async in a bh, do_write and thus write can get called after receiving a close event. This patch adds a check to the usb-redir write callback to not call qemu_chr_fe_write on a closed backend. Signed-off-by: Hans de Goede Signed-off-by: Anthony Liguori --- usb-redir.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/usb-redir.c b/usb-redir.c index 24fdd31ce5..fb91c926a9 100644 --- a/usb-redir.c +++ b/usb-redir.c @@ -225,6 +225,10 @@ static int usbredir_write(void *priv, uint8_t *data, int count) { USBRedirDevice *dev = priv; + if (!dev->cs->opened) { + return 0; + } + return qemu_chr_fe_write(dev->cs, data, count); } -- cgit v1.2.3