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scsi: ignore errors from scsi_dh_add_device()

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device handler initialisation might fail due to a number of
reasons. But as device_handlers are optional this shouldn't
cause us to disable the device entirely.
So just ignore errors from scsi_dh_add_device().

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2015-12-01 10:16:42 +01:00 committed by Martin K. Petersen
parent 41f95dd2ef
commit 221255aee6
1 changed files with 4 additions and 3 deletions
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7
drivers/scsi/scsi_sysfs.c
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@ -1120,11 +1120,12 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
} }
error = scsi_dh_add_device(sdev); error = scsi_dh_add_device(sdev);
if (error) { if (error)
/*
* device_handler is optional, so any error can be ignored
*/
sdev_printk(KERN_INFO, sdev, sdev_printk(KERN_INFO, sdev,
"failed to add device handler: %d\n", error); "failed to add device handler: %d\n", error);
return error;
}
device_enable_async_suspend(&sdev->sdev_dev); device_enable_async_suspend(&sdev->sdev_dev);
error = device_add(&sdev->sdev_dev); error = device_add(&sdev->sdev_dev);