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USB: qcserial: consolidate usb_set_interface calls 

No need to replicate the same code all over the place.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bjørn Mork 2012-07-15 16:47:36 +02:00 committed by Greg Kroah-Hartman
parent 2c026e2b36
commit 2cf69930f0
1 changed files with 16 additions and 33 deletions
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49
drivers/usb/serial/qcserial.c
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@ -127,6 +127,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
__u8 nintf;
__u8 ifnum;
bool is_gobi1k = id->driver_info ? true : false;
int altsetting = -1;
dev_dbg(dev, "Is Gobi 1000 = %d\n", is_gobi1k);
@ -160,15 +161,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
retval = 0; /* Success */
break;
}
retval = usb_set_interface(serial->dev, ifnum, 1);
if (retval < 0) {
dev_err(dev,
"Could not set interface, error %d\n",
retval);
retval = -ENODEV;
kfree(data);
}
altsetting = 1;
}
break;
@ -193,24 +186,10 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
if (ifnum == 1 && !is_gobi1k) {
dev_dbg(dev, "Gobi 2K+ DM/DIAG interface found\n");
retval = usb_set_interface(serial->dev, ifnum, 0);
if (retval < 0) {
dev_err(dev,
"Could not set interface, error %d\n",
retval);
retval = -ENODEV;
kfree(data);
}
altsetting = 0;
} else if (ifnum == 2) {
dev_dbg(dev, "Modem port found\n");
retval = usb_set_interface(serial->dev, ifnum, 0);
if (retval < 0) {
dev_err(dev,
"Could not set interface, error %d\n",
retval);
retval = -ENODEV;
kfree(data);
}
altsetting = 0;
} else if (ifnum==3 && !is_gobi1k) {
/*
* NMEA (serial line 9600 8N1)
@ -218,14 +197,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
* # echo "\$GPS_STOP" > /dev/ttyUSBx
*/
dev_dbg(dev, "Gobi 2K+ NMEA GPS interface found\n");
retval = usb_set_interface(serial->dev, ifnum, 0);
if (retval < 0) {
dev_err(dev,
"Could not set interface, error %d\n",
retval);
retval = -ENODEV;
kfree(data);
}
altsetting = 0;
}
break;
@ -235,6 +207,17 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
retval = -ENODEV;
}
if (altsetting >= 0) {
retval = usb_set_interface(serial->dev, ifnum, altsetting);
if (retval < 0) {
dev_err(dev,
"Could not set interface, error %d\n",
retval);
retval = -ENODEV;
kfree(data);
}
}
/* Set serial->private if not returning -ENODEV */
if (retval != -ENODEV)
usb_set_serial_data(serial, data);