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-rw-r--r--block/qcow2-refcount.c6
-rw-r--r--block/vdi.c4
-rw-r--r--hw/9pfs/virtio-9p.c6
-rw-r--r--hw/vhost.c7
4 files changed, 5 insertions, 18 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 6a95aa6c92..bc1784c30e 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -737,11 +737,7 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs,
* l1_table_offset when it is the current s->l1_table_offset! Be careful
* when changing this! */
if (l1_table_offset != s->l1_table_offset) {
- if (l1_size2 != 0) {
- l1_table = g_malloc0(align_offset(l1_size2, 512));
- } else {
- l1_table = NULL;
- }
+ l1_table = g_malloc0(align_offset(l1_size2, 512));
l1_allocated = 1;
if (bdrv_pread(bs->file, l1_table_offset,
l1_table, l1_size2) != l1_size2)
diff --git a/block/vdi.c b/block/vdi.c
index 257a592ea9..87c691b504 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -443,9 +443,7 @@ static int vdi_open(BlockDriverState *bs, int flags)
bmap_size = header.blocks_in_image * sizeof(uint32_t);
bmap_size = (bmap_size + SECTOR_SIZE - 1) / SECTOR_SIZE;
- if (bmap_size > 0) {
- s->bmap = g_malloc(bmap_size * SECTOR_SIZE);
- }
+ s->bmap = g_malloc(bmap_size * SECTOR_SIZE);
ret = bdrv_read(bs->file, s->bmap_sector, (uint8_t *)s->bmap, bmap_size);
if (ret < 0) {
goto fail_free_bmap;
diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
index 0aaf0d2de0..b795839620 100644
--- a/hw/9pfs/virtio-9p.c
+++ b/hw/9pfs/virtio-9p.c
@@ -3101,11 +3101,7 @@ static void v9fs_xattrcreate(void *opaque)
xattr_fidp->fs.xattr.flags = flags;
v9fs_string_init(&xattr_fidp->fs.xattr.name);
v9fs_string_copy(&xattr_fidp->fs.xattr.name, &name);
- if (size) {
- xattr_fidp->fs.xattr.value = g_malloc(size);
- } else {
- xattr_fidp->fs.xattr.value = NULL;
- }
+ xattr_fidp->fs.xattr.value = g_malloc(size);
err = offset;
put_fid(pdu, file_fidp);
out_nofid:
diff --git a/hw/vhost.c b/hw/vhost.c
index cee8aad4a1..0dd2a9aa40 100644
--- a/hw/vhost.c
+++ b/hw/vhost.c
@@ -269,11 +269,8 @@ static inline void vhost_dev_log_resize(struct vhost_dev* dev, uint64_t size)
vhost_log_chunk_t *log;
uint64_t log_base;
int r, i;
- if (size) {
- log = g_malloc0(size * sizeof *log);
- } else {
- log = NULL;
- }
+
+ log = g_malloc0(size * sizeof *log);
log_base = (uint64_t)(unsigned long)log;
r = ioctl(dev->control, VHOST_SET_LOG_BASE, &log_base);
assert(r >= 0);