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pci: Make errp the last parameter of pci_add_capability()

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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>
This commit is contained in:
Mao Zhongyi 2017-06-27 14:16:50 +08:00 • committed by Michael S. Tsirkin
parent 9a815774bb
commit 9a7c2a5970
12 changed files with 95 additions and 43 deletions
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5
hw/pci/shpc.c
View file

@ -450,9 +450,12 @@ static int shpc_cap_add_config(PCIDevice *d)
{
uint8_t *config;
int config_offset;
Error *local_err = NULL;
config_offset = pci_add_capability(d, PCI_CAP_ID_SHPC,
0, SHPC_CAP_LENGTH);
0, SHPC_CAP_LENGTH,
&local_err);
if (config_offset < 0) {
error_report_err(local_err);
return config_offset;
}
config = d->config + config_offset;