[PATCH RESEND v2] PCI: Add device even if driver attach failed

[Rajat Jain]

device_attach() returning failure indicates a driver error while trying to
probe the device. In such a scenario, the PCI device should still be added
in the system and be visible to the user.

This patch partially reverts:
commit ab1a187bba5c ("PCI: Check device_attach() return value always")

Signed-off-by: Rajat Jain <rajatja@xxxxxxxxxx>
Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
Resending to stable, independent from other patches per Greg's suggestion
v2: Add Greg's reviewed by, fix commit log

 drivers/pci/bus.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 8e40b3e6da77d..3cef835b375fd 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -322,12 +322,8 @@ void pci_bus_add_device(struct pci_dev *dev)
 
 	dev->match_driver = true;
 	retval = device_attach(&dev->dev);
-	if (retval < 0 && retval != -EPROBE_DEFER) {
+	if (retval < 0 && retval != -EPROBE_DEFER)
 		pci_warn(dev, "device attach failed (%d)\n", retval);
-		pci_proc_detach_device(dev);
-		pci_remove_sysfs_dev_files(dev);
-		return;
-	}
 
 	pci_dev_assign_added(dev, true);
 }
-- 
2.27.0.212.ge8ba1cc988-goog