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@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c
index e8e33bb9d8765653f84fd10e9ea1fe327889d903..2c9b3af16612b9324d97202123fedaa16cede085 100644 (file)
--- 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;