On Wed, Nov 01, 2000 at 01:42:17PM -0800, Dunlap, Randy wrote:
> > Is this bug in the usb-driver (usb-uhci), in the camera's driver
> > (cpia_usb) or in the v4l?
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Could there be a memory leak as well? But I expect that
> it's simply that memory is just fragmented so that enough
> contiguous pages aren't available, like Rik said.
There is a memory leak, the memory kmalloc'ed in cpia_usb_open for
sbuf[*].data is never kfree'd (except when an error occurs during
initialisation). Adding some kfree's in cpia_usb_free_resources fixed
the problem in test7 or so, here's a patch against -test10.
--- drivers/media/video/cpia_usb.c.orig Wed Nov 1 14:14:37 2000
+++ drivers/media/video/cpia_usb.c Wed Nov 1 14:16:05 2000
@@ -432,10 +432,20 @@
ucpia->sbuf[1].urb = NULL;
}
+ if (ucpia->sbuf[1].data) {
+ kfree(ucpia->sbuf[1].data);
+ ucpia->sbuf[1].data = NULL;
+ }
+
if (ucpia->sbuf[0].urb) {
usb_unlink_urb(ucpia->sbuf[0].urb);
usb_free_urb(ucpia->sbuf[0].urb);
ucpia->sbuf[0].urb = NULL;
+ }
+
+ if (ucpia->sbuf[0].data) {
+ kfree(ucpia->sbuf[0].data);
+ ucpia->sbuf[0].data = NULL;
}
}
HTH.
Cheers,
aj
-- Anthony Towns <aj@humbug.org.au> <http://azure.humbug.org.au/~aj/> I don't speak for anyone save myself. GPG signed mail preferred.``We reject: kings, presidents, and voting. We believe in: rough consensus and working code.'' -- Dave Clark - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Tue Nov 07 2000 - 21:00:10 EST