Date: Wed, 8 Sep 2004 07:13:39 +0000 (UTC) From: Warner Losh <imp@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/usb ugen.c Message-ID: <200409080713.i887Dd54058789@repoman.freebsd.org>
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imp 2004-09-08 07:13:39 UTC FreeBSD src repository Modified files: sys/dev/usb ugen.c Log: Back out 1.88. The reference counts are there to block detach until the sleepers in read/write/ioctl have gotten out, not to prevent the open device from going away. Restore the old behavior so that we have a chance to wake up sleepers when the usb device goes away, so they can properly return EIO back to the caller when this happens. Otherwise, we have a guarnateed panic waiting to happen when a device detaches with an active read channel. This should be merged to 5 asap. Revision Changes Path 1.89 +11 -9 src/sys/dev/usb/ugen.c
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