[Bug 176545] leak reported by gspca_core.c driver for webcams

[LGB [Gábor Lénárt]]

Public bug reported:

I'm using a Logitech QuickCam messenger ("Bus 001 Device 005: ID
046d:08da Logitech, Inc. " according to lsusb) web camera with Ubuntu
gutsy on i386 (Linux oxygene 2.6.22-14-generic #1 SMP Sun Oct 14
23:05:12 GMT 2007 i686 GNU/Linux). With skype (and other softwares using
webcamera too) streaming video from webcam sometimes stops for a while
when there's lots of messages in kernel log like:

[ 5238.284000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[ 5238.288000] ohci_hcd 0000:00:02.0: leak ed dfdc3100 (#81) state 2
[ 5241.652000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[ 5241.660000] ohci_hcd 0000:00:02.0: leak ed dfdc3140 (#81) state 2
[ 5288.348000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[ 5288.352000] ohci_hcd 0000:00:02.0: leak ed dfdc3180 (#81) state 2
[ 5291.560000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[ 5291.564000] ohci_hcd 0000:00:02.0: leak ed dfdc31c0 (#81) state 2
[ 5295.356000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[ 5295.364000] ohci_hcd 0000:00:02.0: leak ed dfdc3200 (#81) state 2
[ 5298.632000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[ 5298.636000] ohci_hcd 0000:00:02.0: leak ed dfdc3240 (#81) state 2
[ 5302.120000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[ 5302.124000] ohci_hcd 0000:00:02.0: leak ed dfdc3280 (#81) state 2
[ 5305.244000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[ 5305.248000] ohci_hcd 0000:00:02.0: leak ed dfdc32c0 (#81) state 2
[12004.840000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[12004.848000] ohci_hcd 0000:00:02.0: leak ed dfdc3300 (#81) state 2
[12008.896000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[12008.900000] ohci_hcd 0000:00:02.0: leak ed dfdc3340 (#81) state 2
[12042.236000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[12042.240000] ohci_hcd 0000:00:02.0: leak ed dfdc3380 (#81) state 2
[12046.180000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[12046.184000] ohci_hcd 0000:00:02.0: leak ed dfdc33c0 (#81) state 2
[12050.680000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[12050.684000] ohci_hcd 0000:00:02.0: leak ed dfdc3400 (#81) state 2
[12054.676000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[12054.680000] ohci_hcd 0000:00:02.0: leak ed dfdc3440 (#81) state 2
[12058.608000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[12058.612000] ohci_hcd 0000:00:02.0: leak ed dfdc3480 (#81) state 2
[12062.592000] /build/buildd/linux-ubuntu-modules-2.6.22-2.6.22/debian/build/build-generic/media/gspcav1/gspca_core.c: init isoc: usb_submit_urb(0) ret -28
[12062.592000] ohci_hcd 0000:00:02.0: leak ed dfdc34c0 (#81) state 2

I know that skype is not an open source software (and not supported by
the Ubuntu team at all!), but I think this can be the fault of the
webcam usb driver in kernel as well. However only guessing. Thanks a lot
in advnace (and btw, skype version is 2.0.0.27 if it counts ...)

** Affects: linux-meta (Ubuntu)
     Importance: Undecided
         Status: New

-- 
leak reported by gspca_core.c driver for webcams
https://bugs.launchpad.net/bugs/176545
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