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107e4b352c
Memory allocation functions like world_alloc, desc_ring_alloc etc, they are all wrappers around g_malloc, g_new etc. But g_malloc and similar functions doesn't return null. Because they ignore the fact that g_malloc() of 0 bytes returns null. So error checks for these allocation failure are superfluous. Now, remove them entirely. Cc: jasowang@redhat.com Cc: jiri@resnulli.us Cc: armbru@redhat.com Cc: f4bug@amsat.org Signed-off-by: Mao Zhongyi <maozy.fnst@cn.fujitsu.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
101 lines
2.1 KiB
C
101 lines
2.1 KiB
C
/*
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* QEMU rocker switch emulation - switch worlds
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*
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* Copyright (c) 2014 Scott Feldman <sfeldma@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "qemu/osdep.h"
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#include "qemu/iov.h"
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#include "rocker.h"
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#include "rocker_world.h"
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struct world {
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Rocker *r;
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enum rocker_world_type type;
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WorldOps *ops;
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};
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ssize_t world_ingress(World *world, uint32_t pport,
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const struct iovec *iov, int iovcnt)
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{
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if (world->ops->ig) {
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return world->ops->ig(world, pport, iov, iovcnt);
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}
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return -1;
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}
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int world_do_cmd(World *world, DescInfo *info,
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char *buf, uint16_t cmd, RockerTlv *cmd_info_tlv)
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{
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if (world->ops->cmd) {
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return world->ops->cmd(world, info, buf, cmd, cmd_info_tlv);
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}
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return -ROCKER_ENOTSUP;
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}
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World *world_alloc(Rocker *r, size_t sizeof_private,
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enum rocker_world_type type, WorldOps *ops)
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{
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World *w = g_malloc0(sizeof(World) + sizeof_private);
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w->r = r;
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w->type = type;
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w->ops = ops;
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if (w->ops->init) {
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w->ops->init(w);
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}
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return w;
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}
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void world_free(World *world)
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{
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if (world->ops->uninit) {
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world->ops->uninit(world);
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}
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g_free(world);
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}
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void world_reset(World *world)
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{
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if (world->ops->uninit) {
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world->ops->uninit(world);
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}
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if (world->ops->init) {
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world->ops->init(world);
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}
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}
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void *world_private(World *world)
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{
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return world + 1;
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}
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Rocker *world_rocker(World *world)
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{
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return world->r;
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}
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enum rocker_world_type world_type(World *world)
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{
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return world->type;
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}
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const char *world_name(World *world)
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{
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return world->ops->name;
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}
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