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stream: fix crash in stream_start() when block_job_create() fails

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The code that tries to reopen a BlockDriverState in stream_start()
when the creation of a new block job fails crashes because it attempts
to dereference a pointer that is known to be NULL.

This is a regression introduced in a170a91fd3,
likely because the code was copied from stream_complete().

Cc: qemu-stable@nongnu.org
Reported-by: Kashyap Chamarthy <kchamart@redhat.com>
Signed-off-by: Alberto Garcia <berto@igalia.com>
Tested-by: Kashyap Chamarthy <kchamart@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Alberto Garcia 2017-05-15 12:34:24 +03:00 committed by Kevin Wolf
parent 9964e96dc9
commit 525989a50a
1 changed files with 1 additions and 1 deletions
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2
block/stream.c
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@ -280,6 +280,6 @@ void stream_start(const char *job_id, BlockDriverState *bs,
fail:
if (orig_bs_flags != bdrv_get_flags(bs)) {
bdrv_reopen(bs, s->bs_flags, NULL);
bdrv_reopen(bs, orig_bs_flags, NULL);
}
}