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hso: Earlier catch of error condition 

There is no need to get an interface specification if we know it's the
wrong one.

Signed-off-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Gimpelevich 2013-08-21 01:43:07 -07:00 committed by David S. Miller
parent ef40b7ef18
commit 35e57e1b49
1 changed files with 5 additions and 4 deletions
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9
drivers/net/usb/hso.c
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@ -2886,6 +2886,11 @@ static int hso_probe(struct usb_interface *interface,
struct hso_shared_int *shared_int;
struct hso_device *tmp_dev = NULL;
if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) {
dev_err(&interface->dev, "Not our interface\n");
return -ENODEV;
}
if_num = interface->altsetting->desc.bInterfaceNumber;
/* Get the interface/port specification from either driver_info or from
@ -2895,10 +2900,6 @@ static int hso_probe(struct usb_interface *interface,
else
port_spec = hso_get_config_data(interface);
if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) {
dev_err(&interface->dev, "Not our interface\n");
return -ENODEV;
}
/* Check if we need to switch to alt interfaces prior to port
* configuration */
if (interface->num_altsetting > 1)