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block/nbd-client: save first fatal error in nbd_iter_error
authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Mon, 12 Mar 2018 15:21:22 +0000 (18:21 +0300)
committerEric Blake <eblake@redhat.com>
Tue, 13 Mar 2018 20:38:56 +0000 (15:38 -0500)
commit1e98efc0299977a4b0815c2d0a216ae19881e389
treef2239e787ae94cf616effa91f06ef8aca77fa7cf
parente7b1948d510d2e8805db8efaf704bd82d3966963
block/nbd-client: save first fatal error in nbd_iter_error

It is ok, that fatal error hides previous not fatal, but hiding
first fatal error is a bad feature.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180312152126.286890-5-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
block/nbd-client.c