[PATCH 03/18] PCI: endpoint: pci-epf-core: Make ->remove() callback optional

[Kishon Vijay Abraham I]

Make ->remove() callback optional so that endpoint function drivers
don't have to populate empty ->remove() callback functions.

Signed-off-by: Kishon Vijay Abraham I <kis...@ti.com>
---
 drivers/pci/endpoint/pci-epf-core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/endpoint/pci-epf-core.c 
b/drivers/pci/endpoint/pci-epf-core.c
index 60ea0c51161e..ae6fac5995e3 100644
--- a/drivers/pci/endpoint/pci-epf-core.c
+++ b/drivers/pci/endpoint/pci-epf-core.c
@@ -333,11 +333,12 @@ static int pci_epf_device_probe(struct device *dev)
 
 static int pci_epf_device_remove(struct device *dev)
 {
-       int ret;
+       int ret = 0;
        struct pci_epf *epf = to_pci_epf(dev);
        struct pci_epf_driver *driver = to_pci_epf_driver(dev->driver);
 
-       ret = driver->remove(epf);
+       if (driver->remove)
+               ret = driver->remove(epf);
        epf->driver = NULL;
 
        return ret;
-- 
2.11.0