PM: hibernate: Fix writing maj:min to /sys/power/resume

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resume_store() first calls lookup_bdev() and after tries to handle
maj:min, but it does not reset the error before, hence if you will write
maj:min you will get ENOENT:

    # echo 259:2 >| /sys/power/resume
    bash: echo: write error: No such file or directory

This also should fix hiberation via systemd, since it uses this way.

Fixes: 1e8c813b08 ("PM: hibernate: don't use early_lookup_bdev in resume_store")
Signed-off-by: Azat Khuzhin <a3at.mail@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Azat Khuzhin 2023-07-11 13:48:12 +02:00 • committed by Rafael J. Wysocki

parent 06c2afb862

commit c9e4bf607d

1 changed files with 1 additions and 0 deletions

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kernel/power/hibernate.c

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