Am Sonntag, 29. Mai 2005 15:42 schrieb Giuseppe Bilotta:
> Hello all,
>
> I have a an Acecad/[EMAIL PROTECTED] graphic tablet. There are drivers for it
> available on the Internet (see for examples
> http://acecad.sourceforge.net/ and the pages linked from there,
> although the wanadoo.fr page at the top is temporarily unavailable),
> but it seems they have not been merged into mainline. Is there a
> particular reason for it?
The author hasn't submitted it.
While we are at it:
+static void usb_acecad_close(struct input_dev *dev)
+{
+ struct usb_acecad *acecad = dev->private;
+
+ if (!--acecad->open)
+ usb_unlink_urb(acecad->irq);
+}
Use usb_kill_urb()
+ acecad->data = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &acecad->data_dma);
+ if (!acecad->data) {
+ kfree(acecad);
+ return -ENOMEM;
+ }
May use SLAB_KERNEL
+ if (!(buf = kmalloc(63, GFP_KERNEL))) {
+ usb_buffer_free(dev, 8, acecad->data, acecad->data_dma);
+ kfree(acecad);
+ return -ENOMEM;
+ }
Leaking an urb in the error path
+static void usb_acecad_disconnect(struct usb_interface *intf)
+{
+ struct usb_acecad *acecad = usb_get_intfdata (intf);
+
+ usb_set_intfdata(intf, NULL);
+ if (acecad) {
+ usb_unlink_urb(acecad->irq);
usb_kill_urb()
+ input_unregister_device(&acecad->dev);
+ acecad_delete_files(&intf->dev);
+ usb_free_urb(acecad->irq);
+ usb_buffer_free(interface_to_usbdev(intf), 10, acecad->data,
acecad->data_dma);
+ kfree(acecad);
What makes you sure this memory isn't accessed anymore?
+ }
+
+}
+
HTH
Oliver
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