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util: 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>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Markus Armbruster 2014-12-04 15:00:03 +01:00 committed by Michael Tokarev
parent 9be71be5bd
commit e1cf558264
2 changed files with 4 additions and 4 deletions
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4
util/hbitmap.c
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@ -373,7 +373,7 @@ void hbitmap_free(HBitmap *hb)
HBitmap *hbitmap_alloc(uint64_t size, int granularity)
{
HBitmap *hb = g_malloc0(sizeof (struct HBitmap));
HBitmap *hb = g_new0(struct HBitmap, 1);
unsigned i;
assert(granularity >= 0 && granularity < 64);
@ -384,7 +384,7 @@ HBitmap *hbitmap_alloc(uint64_t size, int granularity)
hb->granularity = granularity;
for (i = HBITMAP_LEVELS; i-- > 0; ) {
size = MAX((size + BITS_PER_LONG - 1) >> BITS_PER_LEVEL, 1);
hb->levels[i] = g_malloc0(size * sizeof(unsigned long));
hb->levels[i] = g_new0(unsigned long, size);
}
/* We necessarily have free bits in level 0 due to the definition

4
util/iov.c
View file

@ -253,7 +253,7 @@ unsigned iov_copy(struct iovec *dst_iov, unsigned int dst_iov_cnt,
void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint)
{
qiov->iov = g_malloc(alloc_hint * sizeof(struct iovec));
qiov->iov = g_new(struct iovec, alloc_hint);
qiov->niov = 0;
qiov->nalloc = alloc_hint;
qiov->size = 0;
@ -277,7 +277,7 @@ void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len)
if (qiov->niov == qiov->nalloc) {
qiov->nalloc = 2 * qiov->nalloc + 1;
qiov->iov = g_realloc(qiov->iov, qiov->nalloc * sizeof(struct iovec));
qiov->iov = g_renew(struct iovec, qiov->iov, qiov->nalloc);
}
qiov->iov[qiov->niov].iov_base = base;
qiov->iov[qiov->niov].iov_len = len;