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-rw-r--r--block/iscsi.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/block/iscsi.c b/block/iscsi.c
index fd54a1550e..b647201ec2 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -77,6 +77,9 @@ iscsi_bh_cb(void *p)
qemu_bh_delete(acb->bh);
+ g_free(acb->buf);
+ acb->buf = NULL;
+
if (acb->canceled == 0) {
acb->common.cb(acb->common.opaque, acb->status);
}
@@ -198,6 +201,7 @@ iscsi_aio_write16_cb(struct iscsi_context *iscsi, int status,
trace_iscsi_aio_write16_cb(iscsi, status, acb, acb->canceled);
g_free(acb->buf);
+ acb->buf = NULL;
if (acb->canceled != 0) {
return;
@@ -241,6 +245,7 @@ iscsi_aio_writev(BlockDriverState *bs, int64_t sector_num,
acb->canceled = 0;
acb->bh = NULL;
acb->status = -EINPROGRESS;
+ acb->buf = NULL;
/* XXX we should pass the iovec to write16 to avoid the extra copy */
/* this will allow us to get rid of 'buf' completely */
@@ -249,7 +254,6 @@ iscsi_aio_writev(BlockDriverState *bs, int64_t sector_num,
/* if the iovec only contains one buffer we can pass it directly */
if (acb->qiov->niov == 1) {
- acb->buf = NULL;
data.data = acb->qiov->iov[0].iov_base;
} else {
acb->buf = g_malloc(data.size);
@@ -440,6 +444,7 @@ iscsi_aio_flush(BlockDriverState *bs,
acb->canceled = 0;
acb->bh = NULL;
acb->status = -EINPROGRESS;
+ acb->buf = NULL;
acb->task = iscsi_synchronizecache10_task(iscsi, iscsilun->lun,
0, 0, 0, 0,
@@ -493,6 +498,7 @@ iscsi_aio_discard(BlockDriverState *bs,
acb->canceled = 0;
acb->bh = NULL;
acb->status = -EINPROGRESS;
+ acb->buf = NULL;
list[0].lba = sector_qemu2lun(sector_num, iscsilun);
list[0].num = nb_sectors * BDRV_SECTOR_SIZE / iscsilun->block_size;