diff options
author | Markus Armbruster <armbru@redhat.com> | 2015-12-18 16:35:15 +0100 |
---|---|---|
committer | Markus Armbruster <armbru@redhat.com> | 2016-01-13 15:16:17 +0100 |
commit | e43bfd9c876676e884b561eca009a571992a4b76 (patch) | |
tree | 10fb32df04ffc41e124b1c1807017788168722ad | |
parent | c29b77f955ff2f7b57c1e71e9dc26243eefd0b28 (diff) |
error: Use error_prepend() where it makes obvious sense
Done with this Coccinelle semantic patch
@@
expression FMT, E1, E2;
expression list ARGS;
@@
- error_setg(E1, FMT, ARGS, error_get_pretty(E2));
+ error_propagate(E1, E2);/*###*/
+ error_prepend(E1, FMT/*@@@*/, ARGS);
followed by manual cleanup, first because I can't figure out how to
make Coccinelle transform strings, and second to get rid of now
superfluous error_propagate().
We now use or propagate the original error whole instead of just its
message obtained with error_get_pretty(). This avoids suppressing its
hint (see commit 50b7b00), but I can't see how the errors touched in
this commit could come with hints. It also improves the message
printed with &error_abort when we screw up (see commit 1e9b65b).
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
-rw-r--r-- | block.c | 19 | ||||
-rw-r--r-- | block/qcow2.c | 5 | ||||
-rw-r--r-- | block/qed.c | 5 | ||||
-rw-r--r-- | hw/block/dataplane/virtio-blk.c | 8 | ||||
-rw-r--r-- | hw/scsi/vhost-scsi.c | 6 | ||||
-rw-r--r-- | hw/usb/bus.c | 6 |
6 files changed, 19 insertions, 30 deletions
@@ -1349,12 +1349,10 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDict *parent_options, ret = bdrv_open_inherit(&backing_hd, *backing_filename ? backing_filename : NULL, reference, options, 0, bs, &child_backing, - &local_err); + errp); if (ret < 0) { bs->open_flags |= BDRV_O_NO_BACKING; - error_setg(errp, "Could not open backing file: %s", - error_get_pretty(local_err)); - error_free(local_err); + error_prepend(errp, "Could not open backing file: "); goto free_exit; } @@ -1460,12 +1458,11 @@ int bdrv_append_temp_snapshot(BlockDriverState *bs, int flags, Error **errp) opts = qemu_opts_create(bdrv_qcow2.create_opts, NULL, 0, &error_abort); qemu_opt_set_number(opts, BLOCK_OPT_SIZE, total_size, &error_abort); - ret = bdrv_create(&bdrv_qcow2, tmp_filename, opts, &local_err); + ret = bdrv_create(&bdrv_qcow2, tmp_filename, opts, errp); qemu_opts_del(opts); if (ret < 0) { - error_setg(errp, "Could not create temporary overlay '%s': %s", - tmp_filename, error_get_pretty(local_err)); - error_free(local_err); + error_prepend(errp, "Could not create temporary overlay '%s': ", + tmp_filename); goto out; } @@ -3729,9 +3726,9 @@ bool bdrv_op_is_blocked(BlockDriverState *bs, BlockOpType op, Error **errp) if (!QLIST_EMPTY(&bs->op_blockers[op])) { blocker = QLIST_FIRST(&bs->op_blockers[op]); if (errp) { - error_setg(errp, "Node '%s' is busy: %s", - bdrv_get_device_or_node_name(bs), - error_get_pretty(blocker->reason)); + *errp = error_copy(blocker->reason); + error_prepend(errp, "Node '%s' is busy: ", + bdrv_get_device_or_node_name(bs)); } return true; } diff --git a/block/qcow2.c b/block/qcow2.c index 1789af43d2..d992e7fac7 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1762,9 +1762,8 @@ static void qcow2_invalidate_cache(BlockDriverState *bs, Error **errp) ret = qcow2_open(bs, options, flags, &local_err); QDECREF(options); if (local_err) { - error_setg(errp, "Could not reopen qcow2 layer: %s", - error_get_pretty(local_err)); - error_free(local_err); + error_propagate(errp, local_err); + error_prepend(errp, "Could not reopen qcow2 layer: "); return; } else if (ret < 0) { error_setg_errno(errp, -ret, "Could not reopen qcow2 layer"); diff --git a/block/qed.c b/block/qed.c index 9b88895038..31f4cc9e60 100644 --- a/block/qed.c +++ b/block/qed.c @@ -1611,9 +1611,8 @@ static void bdrv_qed_invalidate_cache(BlockDriverState *bs, Error **errp) memset(s, 0, sizeof(BDRVQEDState)); ret = bdrv_qed_open(bs, NULL, bs->open_flags, &local_err); if (local_err) { - error_setg(errp, "Could not reopen qed layer: %s", - error_get_pretty(local_err)); - error_free(local_err); + error_propagate(errp, local_err); + error_prepend(errp, "Could not reopen qed layer: "); return; } else if (ret < 0) { error_setg_errno(errp, -ret, "Could not reopen qed layer"); diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c index a2529b2242..b8ce6cd5f3 100644 --- a/hw/block/dataplane/virtio-blk.c +++ b/hw/block/dataplane/virtio-blk.c @@ -142,7 +142,6 @@ void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *conf, Error **errp) { VirtIOBlockDataPlane *s; - Error *local_err = NULL; BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev))); VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(qbus); @@ -163,11 +162,8 @@ void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *conf, /* If dataplane is (re-)enabled while the guest is running there could be * block jobs that can conflict. */ - if (blk_op_is_blocked(conf->conf.blk, BLOCK_OP_TYPE_DATAPLANE, - &local_err)) { - error_setg(errp, "cannot start dataplane thread: %s", - error_get_pretty(local_err)); - error_free(local_err); + if (blk_op_is_blocked(conf->conf.blk, BLOCK_OP_TYPE_DATAPLANE, errp)) { + error_prepend(errp, "cannot start dataplane thread: "); return; } diff --git a/hw/scsi/vhost-scsi.c b/hw/scsi/vhost-scsi.c index 00cdac62f9..7bc82885ac 100644 --- a/hw/scsi/vhost-scsi.c +++ b/hw/scsi/vhost-scsi.c @@ -217,11 +217,9 @@ static void vhost_scsi_realize(DeviceState *dev, Error **errp) } if (vs->conf.vhostfd) { - vhostfd = monitor_fd_param(cur_mon, vs->conf.vhostfd, &err); + vhostfd = monitor_fd_param(cur_mon, vs->conf.vhostfd, errp); if (vhostfd == -1) { - error_setg(errp, "vhost-scsi: unable to parse vhostfd: %s", - error_get_pretty(err)); - error_free(err); + error_prepend(errp, "vhost-scsi: unable to parse vhostfd: "); return; } } else { diff --git a/hw/usb/bus.c b/hw/usb/bus.c index 26ab67fc2a..1bbe9302f9 100644 --- a/hw/usb/bus.c +++ b/hw/usb/bus.c @@ -329,9 +329,9 @@ static USBDevice *usb_try_create_simple(USBBus *bus, const char *name, } object_property_set_bool(OBJECT(dev), true, "realized", &err); if (err) { - error_setg(errp, "Failed to initialize USB device '%s': %s", - name, error_get_pretty(err)); - error_free(err); + error_propagate(errp, err); + error_prepend(errp, "Failed to initialize USB device '%s': ", + name); object_unparent(OBJECT(dev)); return NULL; } |