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md: raid1: check rdev before reference in raid1_sync_request func
authorZhiqiang Liu <liuzhiqiang26@huawei.com>
Tue, 10 Dec 2019 02:42:25 +0000 (10:42 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 12 Jan 2020 10:22:39 +0000 (11:22 +0100)
commit32407154fa46970474f7028bd5169ab20efb02cb
tree1c33fba580b9eaecd362cab47432bfee4f80022b
parentebff557aca6bcc2beefc16ec6cac60de00262554
md: raid1: check rdev before reference in raid1_sync_request func

[ Upstream commit 028288df635f5a9addd48ac4677b720192747944 ]

In raid1_sync_request func, rdev should be checked before reference.

Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/md/raid1.c