md: check mddev->pers before calling md_set_readonly()

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If 'mddev->pers' is NULL, there is nothing to do in md_set_readonly().
Except for md_ioctl(), the other two callers of md_set_readonly() have
already checked 'mddev->pers'. To simplify the code, move the check of
'mddev->pers' to the caller.

Signed-off-by: Li Nan <linan122@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20240226031444.3606764-10-linan666@huaweicloud.com

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Li Nan 2024-02-26 11:14:44 +08:00 • committed by Song Liu

parent 650b2e69ff

commit e9b0a1556c

1 changed files with 11 additions and 11 deletions

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drivers/md/md.c

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