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parport: fix error handling 

After registering the device if exclusive access fails for any reason
then we need to unregister the device to remove all references.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
steinar/wifi_calib_4_9_kernel
Sudip Mukherjee 2015-06-15 20:05:49 +05:30 committed by Greg Kroah-Hartman
parent 52721d9d33
commit cabea69587
1 changed files with 2 additions and 1 deletions
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3
drivers/parport/share.c
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@ -907,7 +907,8 @@ parport_register_dev_model(struct parport *port, const char *name,
spin_unlock(&port->physport->pardevice_lock);
pr_debug("%s: cannot grant exclusive access for device %s\n",
port->name, name);
goto err_put_dev;
device_unregister(&par_dev->dev);
goto err_put_port;
}
port->flags |= PARPORT_FLAG_EXCL;
}