W dniu 07.12.2014 o 23:27, Laurent Pinchart pisze:
Hi Andrzej,
Thank you for the patch. I think we're nearly there :-)
Please see inline
<snip>
@@ -787,25 +789,104 @@ static void uvc_free_inst(struct
usb_function_instance *f)
[snip]
static void uvc_free(struct usb_function *f)
{
struct uvc_device *uvc = to_uvc(f);
-
+ struct f_uvc_opts *opts = container_of(f->fi, struct f_uvc_opts,
+ func_inst);
+ --opts->refcnt;
Ok, now refcnt is modified, but it's never tested :-)
It is.
Short answer: Please look into uvc_configfs.c.
Longer answer:
The idea is that refcnt is nonzero whenever a function
is linked to a configuration. If that is the case, the
contents of the function (directory) should not be modified.
opts->refcnt value is checked in uvc_configfs.c.
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