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md: fix error paths from bitmap_create.

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Recent change to bitmap_create mishandles errors.
In particular a failure doesn't alway cause 'err' to be set.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2015-02-25 11:44:11 +11:00
parent 1aee41f637
commit ba599aca52
1 changed files with 4 additions and 2 deletions
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6
drivers/md/md.c
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@ -6118,7 +6118,8 @@ static int set_bitmap_file(struct mddev *mddev, int fd)
if (!IS_ERR(bitmap)) {
mddev->bitmap = bitmap;
err = bitmap_load(mddev);
}
} else
err = PTR_ERR(bitmap);
}
if (fd < 0 || err) {
bitmap_destroy(mddev);
@ -6408,7 +6409,8 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
if (!IS_ERR(bitmap)) {
mddev->bitmap = bitmap;
rv = bitmap_load(mddev);
}
} else
rv = PTR_ERR(bitmap);
if (rv)
bitmap_destroy(mddev);
mddev->pers->quiesce(mddev, 0);