Re: [GIT PULL] PCI: Support for configurable PCI endpoint

[Bjorn Helgaas <helgaas@xxxxxxxxxx>]

On Mon, Apr 10, 2017 at 10:43:28AM -0500, Bjorn Helgaas wrote:
> On Wed, Apr 05, 2017 at 02:22:20PM +0530, Kishon Vijay Abraham I wrote:
> > Hi Bjorn,
> > 
> > Please find the pull request for PCI endpoint support below. I've
> > also included all the history here.
> 
> Thanks, I applied these (with v7 of the first patch) to pci/host-designware
> for v4.12.

Ok, sorry, I screwed this up.  I think my branch actually had v5, not
v6.  But I *think* I fixed it.  Here's the diff from my branch to your
git tree.  Apparently you haven't pushed the v7 patch there, so I
*think* the diff below is the diff between v6 and v7 of that first
patch.

$ git diff pci/host-designware a5c85ba45c96
diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
index caa7be10e473..9ae9e59b2a74 100644
--- a/drivers/pci/endpoint/pci-epc-core.c
+++ b/drivers/pci/endpoint/pci-epc-core.c
@@ -83,7 +83,6 @@ struct pci_epc *pci_epc_get(const char *epc_name)
 			goto err;
 		}
 
-		class_dev_iter_exit(&iter);
 		get_device(&epc->dev);
 		return epc;
 	}
diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c
index 6877d6a5bcc9..92db7dcd911c 100644
--- a/drivers/pci/endpoint/pci-epf-core.c
+++ b/drivers/pci/endpoint/pci-epf-core.c
@@ -40,10 +40,8 @@ static struct device_type pci_epf_type;
  */
 void pci_epf_linkup(struct pci_epf *epf)
 {
-	if (!epf->driver) {
+	if (!epf->driver)
 		dev_WARN(&epf->dev, "epf device not bound to driver\n");
-		return;
-	}
 
 	epf->driver->ops->linkup(epf);
 }
@@ -59,10 +57,8 @@ EXPORT_SYMBOL_GPL(pci_epf_linkup);
  */
 void pci_epf_unbind(struct pci_epf *epf)
 {
-	if (!epf->driver) {
+	if (!epf->driver)
 		dev_WARN(&epf->dev, "epf device not bound to driver\n");
-		return;
-	}
 
 	epf->driver->ops->unbind(epf);
 	module_put(epf->driver->owner);
@@ -78,10 +74,8 @@ EXPORT_SYMBOL_GPL(pci_epf_unbind);
  */
 int pci_epf_bind(struct pci_epf *epf)
 {
-	if (!epf->driver) {
+	if (!epf->driver)
 		dev_WARN(&epf->dev, "epf device not bound to driver\n");
-		return -EINVAL;
-	}
 
 	if (!try_module_get(epf->driver->owner))
 		return -EAGAIN;
@@ -233,7 +227,7 @@ struct pci_epf *pci_epf_create(const char *name)
 	epf->name = kstrdup(func_name, GFP_KERNEL);
 	if (!epf->name) {
 		ret = -ENOMEM;
-		goto free_func_name;
+		goto free_epf;
 	}
 
 	dev = &epf->dev;
@@ -255,8 +249,6 @@ struct pci_epf *pci_epf_create(const char *name)
 put_dev:
 	put_device(dev);
 	kfree(epf->name);
-
-free_func_name:
 	kfree(func_name);
 
 free_epf:
--
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