From 1b8bbb3c0a719f3baac22ea4a7eb1d636383ba3b Mon Sep 17 00:00:00 2001 From: David Ellingsworth Date: Tue, 22 Sep 2009 21:43:19 -0300 Subject: [PATCH] V4L/DVB (13062): radio-mr800: simplify error paths in usb probe callback Simplify error paths in usb probe callback. Signed-off-by: David Ellingsworth Acked-by: Alexey Klimov Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab --- drivers/media/radio/radio-mr800.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c index dd36ba0baab3..0c5d734b00fa 100644 --- a/drivers/media/radio/radio-mr800.c +++ b/drivers/media/radio/radio-mr800.c @@ -689,30 +689,29 @@ static int usb_amradio_probe(struct usb_interface *intf, { struct amradio_device *radio; struct v4l2_device *v4l2_dev; - int retval; + int retval = 0; radio = kzalloc(sizeof(struct amradio_device), GFP_KERNEL); if (!radio) { dev_err(&intf->dev, "kmalloc for amradio_device failed\n"); - return -ENOMEM; + retval = -ENOMEM; + goto err; } radio->buffer = kmalloc(BUFFER_LENGTH, GFP_KERNEL); if (!radio->buffer) { dev_err(&intf->dev, "kmalloc for radio->buffer failed\n"); - kfree(radio); - return -ENOMEM; + retval = -ENOMEM; + goto err_nobuf; } v4l2_dev = &radio->v4l2_dev; retval = v4l2_device_register(&intf->dev, v4l2_dev); if (retval < 0) { dev_err(&intf->dev, "couldn't register v4l2_device\n"); - kfree(radio->buffer); - kfree(radio); - return retval; + goto err_v4l2; } strlcpy(radio->videodev.name, v4l2_dev->name, @@ -736,14 +735,20 @@ static int usb_amradio_probe(struct usb_interface *intf, radio_nr); if (retval < 0) { dev_err(&intf->dev, "could not register video device\n"); - v4l2_device_unregister(v4l2_dev); - kfree(radio->buffer); - kfree(radio); - return -EIO; + goto err_vdev; } usb_set_intfdata(intf, radio); return 0; + +err_vdev: + v4l2_device_unregister(v4l2_dev); +err_v4l2: + kfree(radio->buffer); +err_nobuf: + kfree(radio); +err: + return retval; } static int __init amradio_init(void) -- 2.20.1