ENOSPC is programming error, assert it for debugging.

cc: Michael S. Tsirkin <m...@redhat.com>
cc: Marcel Apfelbaum <mar...@redhat.com>
cc: Markus Armbruster <arm...@redhat.com>
Signed-off-by: Cao jin <caoj.f...@cn.fujitsu.com>
---
 hw/pci/pci.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index f0f41dc..fc8b377 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -2151,10 +2151,8 @@ int pci_add_capability2(PCIDevice *pdev, uint8_t cap_id,
 
     if (!offset) {
         offset = pci_find_space(pdev, size);
-        if (!offset) {
-            error_setg(errp, "out of PCI config space");
-            return -ENOSPC;
-        }
+        /* out of PCI config space should be programming error */
+        assert(offset);
     } else {
         /* Verify that capabilities don't overlap.  Note: device assignment
          * depends on this check to verify that the device is not broken.
-- 
2.1.0




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