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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2620:100:9005:57f::1; envelope-from=bchaney@akamai.com; helo=mx0b-00190b01.pphosted.com X-Spam_score_int: 5 X-Spam_score: 0.5 X-Spam_bar: / X-Spam_report: (0.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @akamai.com) X-ZM-MESSAGEID: 1764787521044019200 From: Steve Sistare Modify net_init_tap so every return branches to a common label, for common cleanup in a subsequent patch. No functional change. Signed-off-by: Steve Sistare Signed-off-by: Ben Chaney --- net/tap.c | 55 +++++++++++++++++++++++++++++++++++++------------------ 1 file changed, 37 insertions(+), 18 deletions(-) diff --git a/net/tap.c b/net/tap.c index abe3b2d036..9d480574c3 100644 --- a/net/tap.c +++ b/net/tap.c @@ -830,7 +830,8 @@ int net_init_tap(const Netdev *netdev, const char *name, * For -netdev, peer is always NULL. */ if (peer && (tap->has_queues || tap->fds || tap->vhostfds)) { error_setg(errp, "Multiqueue tap cannot be used with hubs"); - return -1; + ret =3D -1; + goto out; } =20 if (tap->fd) { @@ -840,23 +841,27 @@ int net_init_tap(const Netdev *netdev, const char *na= me, error_setg(errp, "ifname=3D, script=3D, downscript=3D, vnet_hd= r=3D, " "helper=3D, queues=3D, fds=3D, and vhostfds=3D " "are invalid with fd=3D"); - return -1; + ret =3D -1; + goto out; } =20 fd =3D monitor_fd_param(monitor_cur(), tap->fd, errp); if (fd =3D=3D -1) { - return -1; + ret =3D -1; + goto out; } =20 if (!qemu_set_blocking(fd, false, errp)) { close(fd); - return -1; + ret =3D -1; + goto out; } =20 vnet_hdr =3D tap_probe_vnet_hdr(fd, errp); if (vnet_hdr < 0) { close(fd); - return -1; + ret =3D -1; + goto out; } =20 net_init_tap_one(tap, peer, "tap", name, NULL, @@ -865,7 +870,8 @@ int net_init_tap(const Netdev *netdev, const char *name, if (err) { error_propagate(errp, err); close(fd); - return -1; + ret =3D -1; + goto out; } } else if (tap->fds) { char **fds; @@ -878,7 +884,8 @@ int net_init_tap(const Netdev *netdev, const char *name, error_setg(errp, "ifname=3D, script=3D, downscript=3D, vnet_hd= r=3D, " "helper=3D, queues=3D, and vhostfd=3D " "are invalid with fds=3D"); - return -1; + ret =3D -1; + goto out; } =20 fds =3D g_new0(char *, MAX_TAP_QUEUES); @@ -940,29 +947,35 @@ free_fail: } g_free(fds); g_free(vhost_fds); - return ret; + goto out; + } else if (tap->helper) { if (tap->ifname || tap->script || tap->downscript || tap->has_vnet_hdr || tap->has_queues || tap->vhostfds) { error_setg(errp, "ifname=3D, script=3D, downscript=3D, vnet_hd= r=3D, " "queues=3D, and vhostfds=3D are invalid with helper= =3D"); - return -1; + ret =3D -1; + goto out; } =20 fd =3D net_bridge_run_helper(tap->helper, tap->br ?: DEFAULT_BRIDGE_INTERFACE, errp); if (fd =3D=3D -1) { - return -1; + ret =3D -1; + goto out; } =20 if (!qemu_set_blocking(fd, false, errp)) { - return -1; + close(fd); + ret =3D -1; + goto out; } vnet_hdr =3D tap_probe_vnet_hdr(fd, errp); if (vnet_hdr < 0) { close(fd); - return -1; + ret =3D -1; + goto out; } =20 net_init_tap_one(tap, peer, "bridge", name, ifname, @@ -971,14 +984,16 @@ free_fail: if (err) { error_propagate(errp, err); close(fd); - return -1; + ret =3D -1; + goto out; } } else { g_autofree char *default_script =3D NULL; g_autofree char *default_downscript =3D NULL; if (tap->vhostfds) { error_setg(errp, "vhostfds=3D is invalid if fds=3D wasn't spec= ified"); - return -1; + ret =3D -1; + goto out; } =20 if (!script) { @@ -999,14 +1014,16 @@ free_fail: fd =3D net_tap_init(tap, &vnet_hdr, i >=3D 1 ? "no" : script, ifname, sizeof ifname, queues > 1, errp); if (fd =3D=3D -1) { - return -1; + ret =3D -1; + goto out; } =20 if (queues > 1 && i =3D=3D 0 && !tap->ifname) { if (tap_fd_get_ifname(fd, ifname)) { error_setg(errp, "Fail to get ifname"); close(fd); - return -1; + ret =3D -1; + goto out; } } =20 @@ -1017,12 +1034,14 @@ free_fail: if (err) { error_propagate(errp, err); close(fd); - return -1; + ret =3D -1; + goto out; } } } =20 - return 0; +out: + return ret; } =20 int tap_enable(NetClientState *nc) --=20 2.34.1