diff options
Diffstat (limited to 'drivers/misc/parport_share.c')
| -rw-r--r-- | drivers/misc/parport_share.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/misc/parport_share.c b/drivers/misc/parport_share.c index 7da49fae4..be53e2ba6 100644 --- a/drivers/misc/parport_share.c +++ b/drivers/misc/parport_share.c @@ -1,4 +1,5 @@ -/* $Id: parport_share.c,v 1.14 1998/05/04 19:05:05 ralf Exp $ +/* $Id: parport_share.c,v 1.9 1998/05/07 02:59:59 ralf Exp $ + * * Parallel-port resource manager code. * * Authors: David Campbell <campbell@tirian.che.curtin.edu.au> @@ -308,7 +309,9 @@ try_again: } /* Now we do the change of devices */ + spin_lock_irqsave(&port->lock, flags); port->cad = dev; + spin_unlock_irqrestore(&port->lock, flags); /* Swap the IRQ handlers. */ if (port->irq != PARPORT_IRQ_NONE) { @@ -346,9 +349,8 @@ blocked: dev->waitprev = port->waittail; if (port->waittail) port->waittail->waitnext = dev; - else { - port->waithead = dev->port->waittail = dev; - } + else + port->waithead = port->waittail = dev; } spin_unlock_irqrestore (&port->lock, flags); } |