All of lore.kernel.org
 help / color / mirror / Atom feed
From: Ben Hutchings <ben-/+tVBieCtBitmTQ+vhA3Yw@public.gmane.org>
To: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH net 3/4] catc: Combine failure cleanup code in catc_probe()
Date: Sat, 4 Feb 2017 16:56:56 +0000	[thread overview]
Message-ID: <20170204165656.GX3442@decadent.org.uk> (raw)
In-Reply-To: <20170204165451.GU3442-/+tVBieCtBitmTQ+vhA3Yw@public.gmane.org>

[-- Attachment #1: Type: text/plain, Size: 2064 bytes --]

Signed-off-by: Ben Hutchings <ben-/+tVBieCtBitmTQ+vhA3Yw@public.gmane.org>
---
 drivers/net/usb/catc.c | 33 +++++++++++++++++----------------
 1 file changed, 17 insertions(+), 16 deletions(-)

diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
index 3daa41bdd4ea..985909eab72c 100644
--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -776,7 +776,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 	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)) {
@@ -811,12 +811,8 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 	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 */
@@ -913,16 +909,21 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 	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)


[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 811 bytes --]

  parent reply	other threads:[~2017-02-04 16:56 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-04 16:54 [PATCH net 0/4] Fix on-stack USB buffers Ben Hutchings
2017-02-04 16:56 ` [PATCH net 1/4] pegasus: Use heap buffers for all register access Ben Hutchings
2017-02-05  0:30   ` Greg KH
2017-02-06  8:14     ` Petko Manolov
2017-02-06  8:28       ` Greg KH
2017-02-06 12:51         ` Petko Manolov
2017-02-06 13:21           ` Johan Hovold
2017-02-06 13:32             ` Johan Hovold
2017-02-06 13:46               ` Johan Hovold
2017-02-07 10:24                 ` Petko Manolov
2017-02-07 10:45                   ` Greg KH
     [not found]                     ` <20170207104506.GB32583-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2017-02-07 12:50                       ` Petko Manolov
2017-02-06 13:30           ` David Laight
2017-02-07 18:32           ` Steve Calfee
2017-02-08  7:57             ` Petko Manolov
2017-02-04 16:56 ` [PATCH net 2/4] rtl8150: " Ben Hutchings
2017-02-06  8:10   ` Petko Manolov
     [not found]   ` <20170204165631.GW3442-/+tVBieCtBitmTQ+vhA3Yw@public.gmane.org>
2017-02-06 16:09     ` David Laight
2017-02-06 16:25       ` Ben Hutchings
2017-02-07 10:34         ` Petko Manolov
2017-02-07 10:51           ` Greg KH
2017-02-07 11:56             ` David Laight
     [not found]               ` <063D6719AE5E284EB5DD2968C1650D6DB027DB75-VkEWCZq2GCInGFn1LkZF6NBPR1lH4CV8@public.gmane.org>
2017-02-07 12:42                 ` 'Greg KH'
2017-02-07 12:53             ` Petko Manolov
2017-02-07 13:01               ` Greg KH
2017-02-07 13:20                 ` Petko Manolov
2017-02-07 14:14                   ` David Laight
2017-02-07 14:52                     ` Petko Manolov
     [not found] ` <20170204165451.GU3442-/+tVBieCtBitmTQ+vhA3Yw@public.gmane.org>
2017-02-04 16:56   ` Ben Hutchings [this message]
2017-02-04 16:57 ` [PATCH net 4/4] catc: Use heap buffer for memory size test Ben Hutchings
2017-02-07 15:07 ` [PATCH net 0/4] Fix on-stack USB buffers David Miller

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170204165656.GX3442@decadent.org.uk \
    --to=ben-/+tvbiectbitmtq+vha3yw@public.gmane.org \
    --cc=linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.