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authorPeter Lieven <pl@kamp.de>2018-01-08 16:27:27 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2018-01-16 14:54:52 +0100
commit79f9c75e1707082e56723787e6b3610a46843e20 (patch)
tree579280794c93d2042afdd9a9f627a1e11c4c55b2
parent801110ab22be1ef258338345fc0b645af074d5bf (diff)
block/iscsi: fix initialization of iTask in iscsi_co_get_block_status
in case of unaligned requests or on a target that does not support block provisioning we leave iTask uninitialized and check iTask.task for NULL later. Fixes: e38bc23454ef763deb4405ebdee6a1081aa00bc8 Signed-off-by: Peter Lieven <pl@kamp.de> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <1515425247-21730-1-git-send-email-pl@kamp.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--block/iscsi.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/iscsi.c b/block/iscsi.c
index 5c0a9e55b6..6a1c53711a 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -658,6 +658,8 @@ static int64_t coroutine_fn iscsi_co_get_block_status(BlockDriverState *bs,
uint64_t lba;
int64_t ret;
+ iscsi_co_init_iscsitask(iscsilun, &iTask);
+
if (!is_sector_request_lun_aligned(sector_num, nb_sectors, iscsilun)) {
ret = -EINVAL;
goto out;
@@ -675,7 +677,6 @@ static int64_t coroutine_fn iscsi_co_get_block_status(BlockDriverState *bs,
lba = sector_qemu2lun(sector_num, iscsilun);
- iscsi_co_init_iscsitask(iscsilun, &iTask);
qemu_mutex_lock(&iscsilun->mutex);
retry:
if (iscsi_get_lba_status_task(iscsilun->iscsi, iscsilun->lun,