rationalise return value for ->hot_add_disk method.

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For all array types but linear, ->hot_add_disk returns 1 on
success, 0 on failure.
For linear, it returns 0 on success and -errno on failure.

This doesn't cause a functional problem because the ->hot_add_disk
function of linear is used quite differently to the others.
However it is confusing.

So convert all to return 0 for success or -errno on failure
and fix call sites to match.

Signed-off-by: Neil Brown <neilb@suse.de>

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This commit is contained in:

Neil Brown 2008-06-28 08:31:33 +10:00

parent 6c2fce2ef6

commit 199050ea1f

5 changed files with 21 additions and 20 deletions

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7

drivers/md/md.c

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8

drivers/md/multipath.c

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6

drivers/md/raid1.c

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10

drivers/md/raid10.c

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10

drivers/md/raid5.c

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