Date: Tue, 10 Mar 2015 16:06:08 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r279854 - head/sys/dev/usb/input Message-ID: <201503101606.t2AG68iO099263@svn.freebsd.org>
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Author: hselasky Date: Tue Mar 10 16:06:07 2015 New Revision: 279854 URL: https://svnweb.freebsd.org/changeset/base/279854 Log: Lock softc before clearing bits. Found by: Dmitry Luhtionov <dmitryluhtionov@gmail.com> MFC after: 1 week Modified: head/sys/dev/usb/input/uhid.c Modified: head/sys/dev/usb/input/uhid.c ============================================================================== --- head/sys/dev/usb/input/uhid.c Tue Mar 10 16:01:43 2015 (r279853) +++ head/sys/dev/usb/input/uhid.c Tue Mar 10 16:06:07 2015 (r279854) @@ -518,7 +518,9 @@ uhid_open(struct usb_fifo *fifo, int ffl */ if (fflags & FREAD) { /* reset flags */ + mtx_lock(&sc->sc_mtx); sc->sc_flags &= ~UHID_FLAG_IMMED; + mtx_unlock(&sc->sc_mtx); if (usb_fifo_alloc_buffer(fifo, sc->sc_isize + 1, UHID_FRAME_NUM)) {
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