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Staging: vme: Correct tsi-148 VME interrupt free routine 

As identified by Jiri, the VME interrupt free routine removes the service
routine before disabling the interrupt. Re-order operations to be performed in
the reverse of the request routine.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Martyn Welch 2009-08-05 17:38:31 +01:00 committed by Greg Kroah-Hartman
parent c7ef5da35a
commit df45517536
1 changed files with 8 additions and 7 deletions
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15
drivers/staging/vme/bridges/vme_tsi148.c
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@ -484,21 +484,22 @@ void tsi148_free_irq(int level, int statid)
/* Get semaphore */
down(&(vme_irq));
tsi148_bridge->irq[level - 1].callback[statid].func = NULL;
tsi148_bridge->irq[level - 1].callback[statid].priv_data = NULL;
tsi148_bridge->irq[level - 1].count--;
/* Disable IRQ level */
/* Disable IRQ level if no more interrupts attached at this level*/
if (tsi148_bridge->irq[level - 1].count == 0) {
tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEO);
tmp &= ~TSI148_LCSR_INTEO_IRQEO[level - 1];
iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_INTEO);
tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEN);
tmp &= ~TSI148_LCSR_INTEN_IRQEN[level - 1];
iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_INTEN);
tmp = ioread32be(tsi148_bridge->base + TSI148_LCSR_INTEO);
tmp &= ~TSI148_LCSR_INTEO_IRQEO[level - 1];
iowrite32be(tmp, tsi148_bridge->base + TSI148_LCSR_INTEO);
}
tsi148_bridge->irq[level - 1].callback[statid].func = NULL;
tsi148_bridge->irq[level - 1].callback[statid].priv_data = NULL;
/* Release semaphore */
up(&(vme_irq));
}