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x-conformance=sidf_compatible IronPort-SDR: 60fRz8xH9yMxgIScIxv7ojdS5kEEKjLYbuKXWJ0Fh/HOHM5kVGrC1i0S/StPNvFs+P2EmsSM5S gRnU8QywzNTUu7cyffCh9VUkQKJ8xk6/5emDMZWesN7xxzYcj8jhExUH9QCdhn0R7LdpYkuPSs 9jGIGwuf3l9YWb8D6tkzkchdPrObxwBwblELi2grajzJPeIvFPePG0GIEZ8gD1NNq3QraFtLVm NaaiKG+k+21n6rNw31touy+remLqD9mv8QYVh/rIm1M2uYa7uaethPh2fQYI2Am6F9Ww3tAzck pNw= X-SBRS: 2.7 X-MesageID: 5580743 X-Ironport-Server: esa5.hc3370-68.iphmx.com X-Remote-IP: 162.221.158.21 X-Policy: $RELAYED X-IronPort-AV: E=Sophos;i="5.64,490,1559534400"; d="scan'208";a="5580743" From: Paul Durrant To: Date: Tue, 10 Sep 2019 18:17:53 +0100 Message-ID: <20190910171753.3775-1-paul.durrant@citrix.com> X-Mailer: git-send-email 2.20.1.2.gb21ebb6 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: FreeBSD 9.x X-Received-From: 216.71.155.168 Subject: [Qemu-devel] [PATCH] xen-bus: check whether the frontend is active during device reset... X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Anthony Perard , Paul Durrant , Stefano Stabellini Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" ...not the backend Commit cb323146 "xen-bus: Fix backend state transition on device reset" contained a subtle mistake. The hunk @@ -539,11 +556,11 @@ static void xen_device_backend_changed(void *opaque) /* * If the toolstack (or unplug request callback) has set the backend - * state to Closing, but there is no active frontend (i.e. the - * state is not Connected) then set the backend state to Closed. + * state to Closing, but there is no active frontend then set the + * backend state to Closed. */ if (xendev->backend_state =3D=3D XenbusStateClosing && - xendev->frontend_state !=3D XenbusStateConnected) { + !xen_device_state_is_active(state)) { xen_device_backend_set_state(xendev, XenbusStateClosed); } mistakenly replaced the check of 'xendev->frontend_state' with a check (now in a helper function) of 'state', which actually equates to 'xendev->backend_state'. This patch fixes the mistake. Fixes: cb3231460747552d70af9d546dc53d8195bcb796 Signed-off-by: Paul Durrant Reviewed-by: Anthony PERARD --- Cc: Stefano Stabellini Cc: Anthony Perard --- hw/xen/xen-bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/xen/xen-bus.c b/hw/xen/xen-bus.c index a04478ad4f..025df5e59f 100644 --- a/hw/xen/xen-bus.c +++ b/hw/xen/xen-bus.c @@ -560,7 +560,7 @@ static void xen_device_backend_changed(void *opaque) * backend state to Closed. */ if (xendev->backend_state =3D=3D XenbusStateClosing && - !xen_device_state_is_active(state)) { + !xen_device_state_is_active(xendev->frontend_state)) { xen_device_backend_set_state(xendev, XenbusStateClosed); } =20 --=20 2.20.1.2.gb21ebb6