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>
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@ -532,8 +532,6 @@ static void ivshmem_read(void *opaque, const uint8_t *buf, int size)
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if (incoming_posn == -1) {
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if (incoming_posn == -1) {
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void * map_ptr;
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void * map_ptr;
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s->max_peer = 0;
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if (check_shm_size(s, incoming_fd, &err) == -1) {
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if (check_shm_size(s, incoming_fd, &err) == -1) {
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error_report_err(err);
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error_report_err(err);
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close(incoming_fd);
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close(incoming_fd);
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@ -723,6 +721,8 @@ static void pci_ivshmem_realize(PCIDevice *dev, Error **errp)
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PCI_BASE_ADDRESS_MEM_PREFETCH;
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PCI_BASE_ADDRESS_MEM_PREFETCH;
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Error *local_err = NULL;
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Error *local_err = NULL;
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s->max_peer = -1;
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if (s->sizearg == NULL) {
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if (s->sizearg == NULL) {
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s->ivshmem_size = 4 << 20; /* 4 MB default */
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s->ivshmem_size = 4 << 20; /* 4 MB default */
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} else {
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} else {
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