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Dongli Zhang 428292ec7a xenbus: req->err should be updated before req->state

[ Upstream commit 8130b9d5b5 ]

This patch adds the barrier to guarantee that req->err is always updated
before req->state.

Otherwise, read_reply() would not return ERR_PTR(req->err) but
req->body, when process_writes()->xb_write() is failed.

Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com>
Link: https://lore.kernel.org/r/20200303221423.21962-2-dongli.zhang@oracle.com
Reviewed-by: Julien Grall <jgrall@amazon.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-03-25 08:26:58 +01:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

xenbus_client.c

xen: drop writing error messages to xenstore

2018-10-26 09:17:16 +02:00

xenbus_comms.c

xenbus: req->err should be updated before req->state

2020-03-25 08:26:58 +01:00

xenbus_dev_backend.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license