Re: [PATCH] USB: EHCI: Fix isochronous URB leak

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Am Mittwoch, 25. Februar 2009 schrieb Greg KH:
> On Mon, Feb 23, 2009 at 07:29:20PM +0100, Karsten Wiese wrote:
> > 
> > ehci-hcd uses usb_get_urb() and usb_put_urb() in an unbalanced way causing
> > isochronous URB's kref.counts incrementing once per usb_submit_urb() call.
> > There is no need for ehci-hcd to deal with usb_get_urb() nor usb_put_urb()
> > anyhow, so patch removes their usages in ehci-hcd.
> > It also removes NULL assignments that have no effect.
> > 
> > Signed-off-by: Karsten Wiese <fzu@xxxxxxxxxxxxxxxxxxxxx>
> > ---
> > 
> > Made against 2.6.29-rc6. Suitable to go there and stable ASAP, no?
> 
> Are you sure this is still needed?  It doesn't apply to my tree as I
> think some other patch fixes this.

Would that other patch be usb-ehci-slow-down-itd-reuse.patch?
Then no.
With it there is still the unbalancing urb = NULL; past 
ehci_urb_done(ehci, urb, 0); in itd_complete().

I guessed, usb-ehci-slow-down-itd-reuse.patch would go in for 2.6.30,
so this doesn't fit ontop of usb-ehci-slow-down-itd-reuse.patch.

If there is no other patch, I see 3 sequence possibilities:
 - usb-ehci-slow-down-itd-reuse.patch, then $SUBJECT
 - $SUBJECT, then usb-ehci-slow-down-itd-reuse.patch
 - both patches as one
Which do you prefer?


Thanks,
Karsten
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux