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[Qemu-devel] [PULL 30/53] qemu-char: make tcp_chr_disconnect() reentrant
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 30/53] qemu-char: make tcp_chr_disconnect() reentrant-safe |
Date: |
Fri, 11 Mar 2016 17:09:15 +0200 |
From: Marc-André Lureau <address@hidden>
During CHR_EVENT_CLOSED, the function could be reentered, make this
case safe.
Signed-off-by: Marc-André Lureau <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
qemu-char.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/qemu-char.c b/qemu-char.c
index 3813efd..27fbb44 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -2769,6 +2769,10 @@ static void tcp_chr_disconnect(CharDriverState *chr)
{
TCPCharDriver *s = chr->opaque;
+ if (!s->connected) {
+ return;
+ }
+
s->connected = 0;
if (s->listen_ioc) {
s->listen_tag = qio_channel_add_watch(
--
MST
- [Qemu-devel] [PULL 21/53] pci-ids: add virtio 1.0 ids to spec, (continued)
- [Qemu-devel] [PULL 21/53] pci-ids: add virtio 1.0 ids to spec, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 22/53] nvdimm acpi: initialize the resource used by NVDIMM ACPI, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 23/53] nvdimm acpi: introduce patched dsm memory, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 24/53] nvdimm acpi: let qemu handle _DSM method, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 25/53] nvdimm acpi: emulate dsm method, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 26/53] vhost-user: fix use after free, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 27/53] vhost-user: remove useless is_server field, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 29/53] qemu-char: remove all msgfds on disconnect, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 28/53] qemu-char: avoid potential double-free, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 31/53] pxb: cleanup, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 30/53] qemu-char: make tcp_chr_disconnect() reentrant-safe,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL 32/53] pc: acpi: remove NOP assignment, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 34/53] machine: introduce MachineClass.possible_cpu_arch_ids() hook, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 33/53] pc: init pcms->apic_id_limit once and use it throughout pc.c, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 35/53] pc: acpi: cleanup qdev_get_machine() calls, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 36/53] pc: acpi: SRAT: create only valid processor lapic entries, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 38/53] pc: acpi: create Processor and Notify objects only for valid lapics, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 37/53] pc: acpi: create MADT.lapic entries only for valid lapics, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 39/53] pc: acpi: drop cpu->found_cpus bitmap, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 40/53] pc: acpi: clarify why possible LAPIC entries must be present in MADT, Michael S. Tsirkin, 2016/03/11
- [Qemu-devel] [PULL 41/53] MAINTAINERS: Add an entry for virtio header files, Michael S. Tsirkin, 2016/03/11