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md: unlock mddev_lock on an error path.

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This error path retuns while still holding the lock - bad.

Fixes: 6791875e2e ("md: make reconfig_mutex optional for writes to md sysfs files.")
Cc: stable@vger.kernel.org (v4.0+)
Signed-off-by: NeilBrown <neilb@suse.com>
This commit is contained in:
NeilBrown
2015-06-25 17:06:40 +10:00
parent bd6919228d
commit 9a8c0fa861
1 changed files with 3 additions and 1 deletions
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4
drivers/md/md.c
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@@ -4014,8 +4014,10 @@ new_dev_store(struct mddev *mddev, const char *buf, size_t len)
else else
rdev = md_import_device(dev, -1, -1); rdev = md_import_device(dev, -1, -1);
if (IS_ERR(rdev)) if (IS_ERR(rdev)) {
mddev_unlock(mddev);
return PTR_ERR(rdev); return PTR_ERR(rdev);
}
err = bind_rdev_to_array(rdev, mddev); err = bind_rdev_to_array(rdev, mddev);
out: out:
if (err) if (err)