[PATCH] USB: "Lost sync on frames" error in konicawc module

From: <fgalea@prism.uvsq.fr>

http://bugme.osdl.org/show_bug.cgi?id=3286

The kernel keeps printing "Lost sync on frames" error messages as soon as a
program tries to access the webcam.  No video data can be retrieved from
the webcam.

The following patch seems enough to solve the problem.  (just inverting the
order at which the old and new data blocks are sent to the user).

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

diff --git a/drivers/usb/media/konicawc.c b/drivers/usb/media/konicawc.c
index 3c741a8f5b7346d4234964756aff51fec8ef4018..3376654ca051179cd5f044d904e7ec30dc9d5353 100644 (file)
--- a/drivers/usb/media/konicawc.c
+++ b/drivers/usb/media/konicawc.c
@@ -362,8 +362,8 @@ static void konicawc_isoc_irq(struct urb *urb, struct pt_regs *regs)
                else if (!urb->status && !cam->last_data_urb->status)
                        len = konicawc_compress_iso(uvd, cam->last_data_urb, urb);
 
-               resubmit_urb(uvd, urb);
                resubmit_urb(uvd, cam->last_data_urb);
+               resubmit_urb(uvd, urb);
                cam->last_data_urb = NULL;
                uvd->stats.urb_length = len;
                uvd->stats.data_count += len;