From: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
Simplify pci_epc_get() implementation by API class_find_device_by_name().
Signed-off-by: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
---
drivers/pci/endpoint/pci-epc-core.c | 21 ++++++---------------
1 file changed, 6 insertions(+), 15 deletions(-)
diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
index 71b6d100056e54438d0554f7ee82aaa64e0debb5..eb02d477bc7ca43a91b8a4a13c6ce96dab0b02fd 100644
--- a/drivers/pci/endpoint/pci-epc-core.c
+++ b/drivers/pci/endpoint/pci-epc-core.c
@@ -60,26 +60,17 @@ struct pci_epc *pci_epc_get(const char *epc_name)
int ret = -EINVAL;
struct pci_epc *epc;
struct device *dev;
- struct class_dev_iter iter;
- class_dev_iter_init(&iter, &pci_epc_class, NULL, NULL);
- while ((dev = class_dev_iter_next(&iter))) {
- if (strcmp(epc_name, dev_name(dev)))
- continue;
+ dev = class_find_device_by_name(&pci_epc_class, epc_name);
+ if (!dev)
+ goto err;
- epc = to_pci_epc(dev);
- if (!try_module_get(epc->ops->owner)) {
- ret = -EINVAL;
- goto err;
- }
-
- class_dev_iter_exit(&iter);
- get_device(&epc->dev);
+ epc = to_pci_epc(dev);
+ if (try_module_get(epc->ops->owner))
return epc;
- }
err:
- class_dev_iter_exit(&iter);
+ put_device(dev);
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(pci_epc_get);
--
2.34.1
