pci: Make errp the last parameter of pci_add_capability()

Add Error argument for pci_add_capability() to leverage the errp
to pass info on errors. This way is helpful for its callers to
make a better error handling when moving to 'realize'.

Cc: pbonzini@redhat.com
Cc: rth@twiddle.net
Cc: ehabkost@redhat.com
Cc: mst@redhat.com
Cc: jasowang@redhat.com
Cc: marcel@redhat.com
Cc: alex.williamson@redhat.com
Cc: armbru@redhat.com
Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 4 insertions, 6 deletions

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 3370b76164..3ad6f4e32c 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -2264,15 +2264,13 @@ static void pci_del_option_rom(PCIDevice *pdev)
  * in pci config space
  */
 int pci_add_capability(PCIDevice *pdev, uint8_t cap_id,
-                       uint8_t offset, uint8_t size)
+                       uint8_t offset, uint8_t size,
+                       Error **errp)
 {
     int ret;
-    Error *local_err = NULL;
 
-    ret = pci_add_capability2(pdev, cap_id, offset, size, &local_err);
-    if (ret < 0) {
-        error_report_err(local_err);
-    }
+    ret = pci_add_capability2(pdev, cap_id, offset, size, errp);
+
     return ret;
 }