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ivshmem: initialize max_peer to -1 

There is no peer when device is initialized, do not let doorbell for
inexisting peer 0.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
This commit is contained in:
Marc-André Lureau 2015-06-25 13:49:09 +02:00
parent d8a5da075a
commit 95e7c8a0f6
1 changed files with 2 additions and 2 deletions
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4
hw/misc/ivshmem.c
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@ -532,8 +532,6 @@ static void ivshmem_read(void *opaque, const uint8_t *buf, int size)
if (incoming_posn == -1) {
void * map_ptr;
s->max_peer = 0;
if (check_shm_size(s, incoming_fd, &err) == -1) {
error_report_err(err);
close(incoming_fd);
@ -723,6 +721,8 @@ static void pci_ivshmem_realize(PCIDevice *dev, Error **errp)
PCI_BASE_ADDRESS_MEM_PREFETCH;
Error *local_err = NULL;
s->max_peer = -1;
if (s->sizearg == NULL) {
s->ivshmem_size = 4 << 20; /* 4 MB default */
} else {