[PATCH 3.16 280/370] catc: Combine failure cleanup code in catc_probe()

Ben Hutchings
2017-03-10T13:45:32Z

From: Ben Hutchings <ben@decadent.org.uk>

commit d41149145f98fe26dcd0bfd1d6cc095e6e041418 upstream.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/usb/catc.c | 33 +++++++++++++++++----------------
1 file changed, 17 insertions(+), 16 deletions(-)

--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -777,7 +777,7 @@ static int catc_probe(struct usb_interfa
struct net_device *netdev;
struct catc *catc;
u8 broadcast[ETH_ALEN];
- int i, pktsz;
+ int i, pktsz, ret;

if (usb_set_interface(usbdev,
intf->altsetting->desc.bInterfaceNumber, 1)) {
@@ -812,12 +812,8 @@ static int catc_probe(struct usb_interfa
if ((!catc->ctrl_urb) || (!catc->tx_urb) ||
(!catc->rx_urb) || (!catc->irq_urb)) {
dev_err(&intf->dev, "No free urbs available.\n");
- usb_free_urb(catc->ctrl_urb);
- usb_free_urb(catc->tx_urb);
- usb_free_urb(catc->rx_urb);
- usb_free_urb(catc->irq_urb);
- free_netdev(netdev);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto fail_free;
}

/* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
@@ -914,16 +910,21 @@ static int catc_probe(struct usb_interfa
usb_set_intfdata(intf, catc);

SET_NETDEV_DEV(netdev, &intf->dev);
- if (register_netdev(netdev) != 0) {
- usb_set_intfdata(intf, NULL);
- usb_free_urb(catc->ctrl_urb);
- usb_free_urb(catc->tx_urb);
- usb_free_urb(catc->rx_urb);
- usb_free_urb(catc->irq_urb);
- free_netdev(netdev);
- return -EIO;
- }
+ ret = register_netdev(netdev);
+ if (ret)
+ goto fail_clear_intfdata;
+
return 0;
+
+fail_clear_intfdata:
+ usb_set_intfdata(intf, NULL);
+fail_free:
+ usb_free_urb(catc->ctrl_urb);
+ usb_free_urb(catc->tx_urb);
+ usb_free_urb(catc->rx_urb);
+ usb_free_urb(catc->irq_urb);
+ free_netdev(netdev);
+ return ret;
}

static void catc_disconnect(struct usb_interface *intf)