netdev - [patch] irda-usb: add error handling and fix leak

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Message-ID: <20100307123542.GA6469@bicker>
Date:	Sun, 7 Mar 2010 15:35:42 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Samuel Ortiz <samuel@...tiz.org>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Stephen Hemminger <shemminger@...tta.com>,
	Patrick McHardy <kaber@...sh.net>,
	Tadashi Abe <tabe@...sta.com>, Julia Lawall <julia@...u.dk>,
	netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch] irda-usb: add error handling and fix leak

If the call to kcalloc() fails then we should return -ENOMEM.

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index e8e33bb..2c9b3af 100644
--- a/drivers/net/irda/irda-usb.c
+++ b/drivers/net/irda/irda-usb.c
@@ -1651,6 +1651,8 @@ static int irda_usb_probe(struct usb_interface *intf,
 
 	self->rx_urb = kcalloc(self->max_rx_urb, sizeof(struct urb *),
 				GFP_KERNEL);
+	if (!self->rx_urb)
+		goto err_free_net;
 
 	for (i = 0; i < self->max_rx_urb; i++) {
 		self->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
@@ -1783,6 +1785,8 @@ err_out_2:
 err_out_1:
 	for (i = 0; i < self->max_rx_urb; i++)
 		usb_free_urb(self->rx_urb[i]);
+	kfree(self->rx_urb);
+err_free_net:
 	free_netdev(net);
 err_out:
 	return ret;
--
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