diff mbox series

[v4,08/17] msi: Omit errp for pci_add_capability

Message ID 20221027063705.4093-9-akihiko.odaki@daynix.com (mailing list archive)
State New, archived
Headers show
Series pci: Abort if pci_add_capability fails | expand

Commit Message

Akihiko Odaki Oct. 27, 2022, 6:36 a.m. UTC 
Omitting errp for pci_add_capability() causes it to abort if
capabilities overlap. A caller of msi_init(), which calls
pci_add_capability() in turn, is expected to ensure that will not
happen.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
 hw/pci/msi.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/hw/pci/msi.c b/hw/pci/msi.c
index 058d1d1ef1..5283a08b5a 100644
--- a/hw/pci/msi.c
+++ b/hw/pci/msi.c
@@ -194,7 +194,6 @@  int msi_init(struct PCIDevice *dev, uint8_t offset,
     unsigned int vectors_order;
     uint16_t flags;
     uint8_t cap_size;
-    int config_offset;
 
     if (!msi_nonbroken) {
         error_setg(errp, "MSI is not supported by interrupt controller");
@@ -221,13 +220,7 @@  int msi_init(struct PCIDevice *dev, uint8_t offset,
     }
 
     cap_size = msi_cap_sizeof(flags);
-    config_offset = pci_add_capability(dev, PCI_CAP_ID_MSI, offset,
-                                        cap_size, errp);
-    if (config_offset < 0) {
-        return config_offset;
-    }
-
-    dev->msi_cap = config_offset;
+    dev->msi_cap = pci_add_capability(dev, PCI_CAP_ID_MSI, offset, cap_size);
     dev->cap_present |= QEMU_PCI_CAP_MSI;
 
     pci_set_word(dev->config + msi_flags_off(dev), flags);