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crypto: nx - don't register pSeries driver if ENODEV

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Don't register the pSeries driver when parsing the device tree returns
ENODEV.

The nx842_probe() function in the pSeries driver returns error instead
of registering as a crypto compression driver, when it receives an
error return value from the nx842_OF_upd() function that probes the
device tree nodes, except when ENODEV is returned.  However ENODEV
should not be a special case and the driver should not register when
there is no hw device, or the hw device is disabled.

Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Dan Streetman 2015-07-22 14:26:34 -04:00 committed by Herbert Xu
parent 7f6e3aad5a
commit ee781b7ff3
1 changed files with 1 additions and 4 deletions
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5
drivers/crypto/nx/nx-842-pseries.c
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@ -999,11 +999,8 @@ static int nx842_probe(struct vio_dev *viodev,
of_reconfig_notifier_register(&nx842_of_nb);
ret = nx842_OF_upd(NULL);
if (ret && ret != -ENODEV) {
dev_err(&viodev->dev, "could not parse device tree. %d\n", ret);
ret = -1;
if (ret)
goto error;
}
rcu_read_lock();
dev_set_drvdata(&viodev->dev, rcu_dereference(devdata));