[PATCH] pcmcia: irq probe can be done without risking an IRQ storm

[Alan Cox]

Nowdays you can ask for an IRQ to be allocated but not enabled, when
PCMCIA was written this was not true and this feature is thus not used

Signed-off-by: Alan Cox <alan@xxxxxxxxxx>

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.21-rc5-mm4/drivers/pcmcia/pcmcia_resource.c linux-2.6.21-rc5-mm4/drivers/pcmcia/pcmcia_resource.c
--- linux.vanilla-2.6.21-rc5-mm4/drivers/pcmcia/pcmcia_resource.c	2007-04-03 16:52:14.000000000 +0100
+++ linux-2.6.21-rc5-mm4/drivers/pcmcia/pcmcia_resource.c	2007-04-03 17:10:42.000000000 +0100
@@ -810,8 +810,11 @@
 		type = IRQF_SHARED;
 	if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)
 		type = IRQF_SHARED;	
 #ifdef CONFIG_PCMCIA_PROBE
+	if (!(req->Attributes & IRQ_HANDLE_PRESENT))
+		type |= IRQ_NOAUTOEN;
+
 	if (s->irq.AssignedIRQ != 0) {
 		/* If the interrupt is already assigned, it must be the same */
 		irq = s->irq.AssignedIRQ;
-
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