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authorHans de Goede <hdegoede@redhat.com>2010-02-19 04:41:40 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-02-26 15:11:09 -0300
commit10ee2402004d03b31555aad7badf7e499fa686d3 (patch)
tree3d12e11eeaaa9a96362a99de3e0fa6ca76399bc1
parentac82f59f9cc6aae3300430fcc3422e59f83d89ae (diff)
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V4L/DVB: gspca_main: some input error handling fixes
2 small changes to input device error handling: 1) Make it fatal when we fail to create an input device (it is either this or add checks for gspca_dev->input_dev being NULL in a lot of places) 2) Since we allow gspca_input_create_urb() to fail everywhere we call it, and thus never check its return value, make it void. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/video/gspca/gspca.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index d9a934b..a156dd4 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -184,8 +184,7 @@ static int gspca_input_connect(struct gspca_dev *dev)
} else {
dev->input_dev = input_dev;
}
- } else
- err = -EINVAL;
+ }
return err;
}
@@ -243,9 +242,8 @@ error:
return ret;
}
-static int gspca_input_create_urb(struct gspca_dev *gspca_dev)
+static void gspca_input_create_urb(struct gspca_dev *gspca_dev)
{
- int ret = -EINVAL;
struct usb_interface *intf;
struct usb_host_interface *intf_desc;
struct usb_endpoint_descriptor *ep;
@@ -259,12 +257,11 @@ static int gspca_input_create_urb(struct gspca_dev *gspca_dev)
if (usb_endpoint_dir_in(ep) &&
usb_endpoint_xfer_int(ep)) {
- ret = alloc_and_submit_int_urb(gspca_dev, ep);
+ alloc_and_submit_int_urb(gspca_dev, ep);
break;
}
}
}
- return ret;
}
static void gspca_input_destroy_urb(struct gspca_dev *gspca_dev)
@@ -2289,6 +2286,10 @@ int gspca_dev_probe(struct usb_interface *intf,
goto out;
gspca_set_default_mode(gspca_dev);
+ ret = gspca_input_connect(gspca_dev);
+ if (ret)
+ goto out;
+
mutex_init(&gspca_dev->usb_lock);
mutex_init(&gspca_dev->read_lock);
mutex_init(&gspca_dev->queue_lock);
@@ -2310,12 +2311,12 @@ int gspca_dev_probe(struct usb_interface *intf,
usb_set_intfdata(intf, gspca_dev);
PDEBUG(D_PROBE, "%s created", video_device_node_name(&gspca_dev->vdev));
- ret = gspca_input_connect(gspca_dev);
- if (ret == 0)
- ret = gspca_input_create_urb(gspca_dev);
+ gspca_input_create_urb(gspca_dev);
return 0;
out:
+ if (gspca_dev->input_dev)
+ input_unregister_device(gspca_dev->input_dev);
kfree(gspca_dev->usb_buf);
kfree(gspca_dev);
return ret;