diff options
| author | Markus Armbruster <armbru@redhat.com> | 2014-08-19 10:31:08 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2014-08-20 11:51:28 +0200 |
| commit | 5839e53bbc0fec56021d758aab7610df421ed8c8 (patch) | |
| tree | 1075e29349d0b56c15c6e3b33b5dbc752d806d81 /block/qcow.c | |
| parent | 302fa283789a2f9b1199c327047cfad2258a23a2 (diff) | |
| download | qemu-5839e53bbc0fec56021d758aab7610df421ed8c8.tar.gz | |
block: Use g_new() & friends where that makes obvious sense
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.
Patch created with Coccinelle, with two manual changes on top:
* Add const to bdrv_iterate_format() to keep the types straight
* Convert the allocation in bdrv_drop_intermediate(), which Coccinelle
inexplicably misses
Coccinelle semantic patch:
@@
type T;
@@
-g_malloc(sizeof(T))
+g_new(T, 1)
@@
type T;
@@
-g_try_malloc(sizeof(T))
+g_try_new(T, 1)
@@
type T;
@@
-g_malloc0(sizeof(T))
+g_new0(T, 1)
@@
type T;
@@
-g_try_malloc0(sizeof(T))
+g_try_new0(T, 1)
@@
type T;
expression n;
@@
-g_malloc(sizeof(T) * (n))
+g_new(T, n)
@@
type T;
expression n;
@@
-g_try_malloc(sizeof(T) * (n))
+g_try_new(T, n)
@@
type T;
expression n;
@@
-g_malloc0(sizeof(T) * (n))
+g_new0(T, n)
@@
type T;
expression n;
@@
-g_try_malloc0(sizeof(T) * (n))
+g_try_new0(T, n)
@@
type T;
expression p, n;
@@
-g_realloc(p, sizeof(T) * (n))
+g_renew(T, p, n)
@@
type T;
expression p, n;
@@
-g_try_realloc(p, sizeof(T) * (n))
+g_try_renew(T, p, n)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qcow.c')
| -rw-r--r-- | block/qcow.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/qcow.c b/block/qcow.c index 67332f03c1..67c237fe7d 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -182,7 +182,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags, } s->l1_table_offset = header.l1_table_offset; - s->l1_table = g_try_malloc(s->l1_size * sizeof(uint64_t)); + s->l1_table = g_try_new(uint64_t, s->l1_size); if (s->l1_table == NULL) { error_setg(errp, "Could not allocate memory for L1 table"); ret = -ENOMEM; |