[Qemu-devel] [PATCH 3/4] nvme: check msix_init_exclusive_bar return value

[Li Qiang]

As this function can fail.

Signed-off-by: Li Qiang <liq...@gmail.com>
---
 hw/block/nvme.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 72c9644..a406c23 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -1250,7 +1250,10 @@ static void nvme_realize(PCIDevice *pci_dev, Error 
**errp)
     pci_register_bar(&n->parent_obj, 0,
         PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64,
         &n->iomem);
-    msix_init_exclusive_bar(&n->parent_obj, n->num_queues, 4, NULL);
+    if (msix_init_exclusive_bar(&n->parent_obj, n->num_queues, 4, NULL)) {
+        error_setg(errp, "msix_init_exclusive_bar failed");
+        return;
+    }
 
     id->vid = cpu_to_le16(pci_get_word(pci_conf + PCI_VENDOR_ID));
     id->ssvid = cpu_to_le16(pci_get_word(pci_conf + PCI_SUBSYSTEM_VENDOR_ID));
-- 
1.8.3.1