diff options
| author | Mao Zhongyi <maozy.fnst@cn.fujitsu.com> | 2017-06-27 14:16:48 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-07-03 22:29:48 +0300 |
| commit | eacbc63211c18ad56eb5a3835683663462b131b2 (patch) | |
| tree | bbc9b65e5130b6b048dc839010d42ba5766742c7 | |
| parent | 673b0d7ccc34e9617d99ed4c29caa964f19a4c5a (diff) | |
pci: Add comment for pci_add_capability2()
Comments for pci_add_capability2() to explain the return
value. This may help to make a correct return value check
for its callers.
Cc: mst@redhat.com
Cc: marcel@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>
| -rw-r--r-- | hw/pci/pci.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 3c24888870..3370b76164 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -2276,6 +2276,12 @@ int pci_add_capability(PCIDevice *pdev, uint8_t cap_id, return ret; } +/* + * On success, pci_add_capability2() returns a positive value + * that the offset of the pci capability. + * On failure, it sets an error and returns a negative error + * code. + */ int pci_add_capability2(PCIDevice *pdev, uint8_t cap_id, uint8_t offset, uint8_t size, Error **errp) |