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net: Use g_new() & friends where that makes obvious sense

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g_new(T, n) is neater than g_malloc(sizeof(T) * n).  It's also safer,
for two reasons.  One, it catches multiplication overflowing size_t.
Two, it returns T * rather than void *, which lets the compiler catch
more type errors.

This commit only touches allocations with size arguments of the form
sizeof(T).

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Markus Armbruster 2014-12-04 14:28:17 +01:00 committed by Stefan Hajnoczi
parent 71e28e3cc2
commit 58889fe50a
3 changed files with 5 additions and 5 deletions
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6
net/l2tpv3.c
View File

@ -489,12 +489,12 @@ static struct mmsghdr *build_l2tpv3_vector(NetL2TPV3State *s, int count)
struct iovec *iov;
struct mmsghdr *msgvec, *result;
msgvec = g_malloc(sizeof(struct mmsghdr) * count);
msgvec = g_new(struct mmsghdr, count);
result = msgvec;
for (i = 0; i < count ; i++) {
msgvec->msg_hdr.msg_name = NULL;
msgvec->msg_hdr.msg_namelen = 0;
iov = g_malloc(sizeof(struct iovec) * IOVSIZE);
iov = g_new(struct iovec, IOVSIZE);
msgvec->msg_hdr.msg_iov = iov;
iov->iov_base = g_malloc(s->header_size);
iov->iov_len = s->header_size;
@ -729,7 +729,7 @@ int net_init_l2tpv3(const NetClientOptions *opts,
}
s->msgvec = build_l2tpv3_vector(s, MAX_L2TPV3_MSGCNT);
s->vec = g_malloc(sizeof(struct iovec) * MAX_L2TPV3_IOVCNT);
s->vec = g_new(struct iovec, MAX_L2TPV3_IOVCNT);
s->header_buf = g_malloc(s->header_size);
qemu_set_nonblock(fd);

2
net/queue.c
View File

@ -62,7 +62,7 @@ NetQueue *qemu_new_net_queue(void *opaque)
{
NetQueue *queue;
queue = g_malloc0(sizeof(NetQueue));
queue = g_new0(NetQueue, 1);
queue->opaque = opaque;
queue->nq_maxlen = 10000;

2
net/slirp.c
View File

@ -652,7 +652,7 @@ static int slirp_guestfwd(SlirpState *s, const char *config_str,
return -1;
}
} else {
fwd = g_malloc(sizeof(struct GuestFwd));
fwd = g_new(struct GuestFwd, 1);
fwd->hd = qemu_chr_new(buf, p, NULL);
if (!fwd->hd) {
error_report("could not open guest forwarding device '%s'", buf);