diff options
author | Mao Zhongyi <maozy.fnst@cn.fujitsu.com> | 2017-08-14 11:33:07 +0800 |
---|---|---|
committer | Jason Wang <jasowang@redhat.com> | 2017-09-08 08:17:37 +0800 |
commit | 107e4b352cc309f9bd7588ef1a44549200620078 (patch) | |
tree | 50a7dc360ddd299a00f4a694bd56b9c27792e81e /hw | |
parent | 6ce310b5356abb7edc3aa8b8b097d0b8cc76f83f (diff) | |
download | qemu-107e4b352cc309f9bd7588ef1a44549200620078.zip qemu-107e4b352cc309f9bd7588ef1a44549200620078.tar.gz qemu-107e4b352cc309f9bd7588ef1a44549200620078.tar.bz2 |
net/rocker: Remove the dead error handling
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>
Diffstat (limited to 'hw')
-rw-r--r-- | hw/net/rocker/rocker.c | 47 | ||||
-rw-r--r-- | hw/net/rocker/rocker_desc.c | 10 | ||||
-rw-r--r-- | hw/net/rocker/rocker_fp.c | 4 | ||||
-rw-r--r-- | hw/net/rocker/rocker_of_dpa.c | 20 | ||||
-rw-r--r-- | hw/net/rocker/rocker_world.c | 12 |
5 files changed, 6 insertions, 87 deletions
diff --git a/hw/net/rocker/rocker.c b/hw/net/rocker/rocker.c index 4f0f6d7..7496752 100644 --- a/hw/net/rocker/rocker.c +++ b/hw/net/rocker/rocker.c @@ -239,10 +239,6 @@ static int tx_consume(Rocker *r, DescInfo *info) } iov[iovcnt].iov_len = frag_len; iov[iovcnt].iov_base = g_malloc(frag_len); - if (!iov[iovcnt].iov_base) { - err = -ROCKER_ENOMEM; - goto err_no_mem; - } pci_dma_read(dev, frag_addr, iov[iovcnt].iov_base, iov[iovcnt].iov_len); @@ -259,7 +255,6 @@ static int tx_consume(Rocker *r, DescInfo *info) err = fp_port_eg(r->fp_port[port], iov, iovcnt); err_too_many_frags: -err_no_mem: err_bad_attr: for (i = 0; i < ROCKER_TX_FRAGS_MAX; i++) { g_free(iov[i].iov_base); @@ -671,10 +666,7 @@ int rx_produce(World *world, uint32_t pport, */ data = g_malloc(data_size); - if (!data) { - err = -ROCKER_ENOMEM; - goto out; - } + iov_to_buf(iov, iovcnt, 0, data, data_size); pci_dma_write(dev, frag_addr, data, data_size); g_free(data); @@ -719,11 +711,6 @@ static void rocker_test_dma_ctrl(Rocker *r, uint32_t val) buf = g_malloc(r->test_dma_size); - if (!buf) { - DPRINTF("test dma buffer alloc failed"); - return; - } - switch (val) { case ROCKER_TEST_DMA_CTRL_CLEAR: memset(buf, 0, r->test_dma_size); @@ -1310,13 +1297,6 @@ static int pci_rocker_init(PCIDevice *dev) r->worlds[ROCKER_WORLD_TYPE_OF_DPA] = of_dpa_world_alloc(r); - for (i = 0; i < ROCKER_WORLD_TYPE_MAX; i++) { - if (!r->worlds[i]) { - err = -ENOMEM; - goto err_world_alloc; - } - } - if (!r->world_name) { r->world_name = g_strdup(world_name(r->worlds[ROCKER_WORLD_TYPE_OF_DPA])); } @@ -1393,9 +1373,6 @@ static int pci_rocker_init(PCIDevice *dev) } r->rings = g_new(DescRing *, rocker_pci_ring_count(r)); - if (!r->rings) { - goto err_rings_alloc; - } /* Rings are ordered like this: * - command ring @@ -1407,14 +1384,9 @@ static int pci_rocker_init(PCIDevice *dev) * ..... */ - err = -ENOMEM; for (i = 0; i < rocker_pci_ring_count(r); i++) { DescRing *ring = desc_ring_alloc(r, i); - if (!ring) { - goto err_ring_alloc; - } - if (i == ROCKER_RING_CMD) { desc_ring_set_consume(ring, cmd_consume, ROCKER_MSIX_VEC_CMD); } else if (i == ROCKER_RING_EVENT) { @@ -1434,10 +1406,6 @@ static int pci_rocker_init(PCIDevice *dev) fp_port_alloc(r, r->name, &r->fp_start_macaddr, i, &r->fp_ports_peers[i]); - if (!port) { - goto err_port_alloc; - } - r->fp_port[i] = port; fp_port_set_world(port, r->world_dflt); } @@ -1446,25 +1414,12 @@ static int pci_rocker_init(PCIDevice *dev) return 0; -err_port_alloc: - for (--i; i >= 0; i--) { - FpPort *port = r->fp_port[i]; - fp_port_free(port); - } - i = rocker_pci_ring_count(r); -err_ring_alloc: - for (--i; i >= 0; i--) { - desc_ring_free(r->rings[i]); - } - g_free(r->rings); -err_rings_alloc: err_duplicate: rocker_msix_uninit(r); err_msix_init: object_unparent(OBJECT(&r->msix_bar)); object_unparent(OBJECT(&r->mmio)); err_world_type_by_name: -err_world_alloc: for (i = 0; i < ROCKER_WORLD_TYPE_MAX; i++) { if (r->worlds[i]) { world_free(r->worlds[i]); diff --git a/hw/net/rocker/rocker_desc.c b/hw/net/rocker/rocker_desc.c index 6184c40..b009da4 100644 --- a/hw/net/rocker/rocker_desc.c +++ b/hw/net/rocker/rocker_desc.c @@ -65,10 +65,6 @@ char *desc_get_buf(DescInfo *info, bool read_only) info->buf_size = size; } - if (!info->buf) { - return NULL; - } - pci_dma_read(dev, le64_to_cpu(info->desc.buf_addr), info->buf, size); return info->buf; @@ -142,9 +138,6 @@ bool desc_ring_set_size(DescRing *ring, uint32_t size) ring->head = ring->tail = 0; ring->info = g_renew(DescInfo, ring->info, size); - if (!ring->info) { - return false; - } memset(ring->info, 0, size * sizeof(DescInfo)); @@ -345,9 +338,6 @@ DescRing *desc_ring_alloc(Rocker *r, int index) DescRing *ring; ring = g_new0(DescRing, 1); - if (!ring) { - return NULL; - } ring->r = r; ring->index = index; diff --git a/hw/net/rocker/rocker_fp.c b/hw/net/rocker/rocker_fp.c index 1305ac3..4b3c984 100644 --- a/hw/net/rocker/rocker_fp.c +++ b/hw/net/rocker/rocker_fp.c @@ -226,10 +226,6 @@ FpPort *fp_port_alloc(Rocker *r, char *sw_name, { FpPort *port = g_new0(FpPort, 1); - if (!port) { - return NULL; - } - port->r = r; port->index = index; port->pport = index + 1; diff --git a/hw/net/rocker/rocker_of_dpa.c b/hw/net/rocker/rocker_of_dpa.c index 9b1e0d2..191a58e 100644 --- a/hw/net/rocker/rocker_of_dpa.c +++ b/hw/net/rocker/rocker_of_dpa.c @@ -368,9 +368,6 @@ static OfDpaFlow *of_dpa_flow_alloc(uint64_t cookie) int64_t now = qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) / 1000; flow = g_new0(OfDpaFlow, 1); - if (!flow) { - return NULL; - } flow->cookie = cookie; flow->mask.tbl_id = 0xffffffff; @@ -813,10 +810,6 @@ static OfDpaGroup *of_dpa_group_alloc(uint32_t id) { OfDpaGroup *group = g_new0(OfDpaGroup, 1); - if (!group) { - return NULL; - } - group->id = id; return group; @@ -1867,9 +1860,6 @@ static int of_dpa_cmd_flow_add(OfDpa *of_dpa, uint64_t cookie, } flow = of_dpa_flow_alloc(cookie); - if (!flow) { - return -ROCKER_ENOMEM; - } err = of_dpa_cmd_flow_add_mod(of_dpa, flow, flow_tlvs); if (err) { @@ -2040,17 +2030,10 @@ static int of_dpa_cmd_add_l2_flood(OfDpa *of_dpa, OfDpaGroup *group, rocker_tlv_get_le16(group_tlvs[ROCKER_TLV_OF_DPA_GROUP_COUNT]); tlvs = g_new0(RockerTlv *, group->l2_flood.group_count + 1); - if (!tlvs) { - return -ROCKER_ENOMEM; - } g_free(group->l2_flood.group_ids); group->l2_flood.group_ids = g_new0(uint32_t, group->l2_flood.group_count); - if (!group->l2_flood.group_ids) { - err = -ROCKER_ENOMEM; - goto err_out; - } rocker_tlv_parse_nested(tlvs, group->l2_flood.group_count, group_tlvs[ROCKER_TLV_OF_DPA_GROUP_IDS]); @@ -2157,9 +2140,6 @@ static int of_dpa_cmd_group_add(OfDpa *of_dpa, uint32_t group_id, } group = of_dpa_group_alloc(group_id); - if (!group) { - return -ROCKER_ENOMEM; - } err = of_dpa_cmd_group_do(of_dpa, group_id, group, group_tlvs); if (err) { diff --git a/hw/net/rocker/rocker_world.c b/hw/net/rocker/rocker_world.c index 89777e9..f73c534 100644 --- a/hw/net/rocker/rocker_world.c +++ b/hw/net/rocker/rocker_world.c @@ -51,13 +51,11 @@ World *world_alloc(Rocker *r, size_t sizeof_private, { World *w = g_malloc0(sizeof(World) + sizeof_private); - if (w) { - w->r = r; - w->type = type; - w->ops = ops; - if (w->ops->init) { - w->ops->init(w); - } + w->r = r; + w->type = type; + w->ops = ops; + if (w->ops->init) { + w->ops->init(w); } return w; |