qcow2: Fix error handling in qcow_save_vmstate

Don't assume success but pass the bdrv_pwrite return value on.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Kevin Wolf 2010-01-20 15:02:59 +01:00 committed by Anthony Liguori
parent fb8fa77ce1
commit 1d36e3aae3
1 changed files with 3 additions and 2 deletions

View File

@ -1163,12 +1163,13 @@ static int qcow_save_vmstate(BlockDriverState *bs, const uint8_t *buf,
{ {
BDRVQcowState *s = bs->opaque; BDRVQcowState *s = bs->opaque;
int growable = bs->growable; int growable = bs->growable;
int ret;
bs->growable = 1; bs->growable = 1;
bdrv_pwrite(bs, qcow_vm_state_offset(s) + pos, buf, size); ret = bdrv_pwrite(bs, qcow_vm_state_offset(s) + pos, buf, size);
bs->growable = growable; bs->growable = growable;
return size; return ret;
} }
static int qcow_load_vmstate(BlockDriverState *bs, uint8_t *buf, static int qcow_load_vmstate(BlockDriverState *bs, uint8_t *buf,