pnp: suppress request_irq() warning

Suppress the "setup_irq: irq handler mismatch" coming out of pnp_check_irq():
failures are expected here.

Cc: Santiago Garcia Mantinan <manty@manty.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/pnp/resource.c

@@ -396,7 +396,8 @@ int pnp_check_irq(struct pnp_dev * dev, int idx)
 	/* check if the resource is already in use, skip if the
 	 * device is active because it itself may be in use */
 	if(!dev->active) {
-		if (request_irq(*irq, pnp_test_handler, SA_INTERRUPT, "pnp", NULL))
+		if (request_irq(*irq, pnp_test_handler,
+				SA_INTERRUPT|SA_PROBEIRQ, "pnp", NULL))
 			return 0;
 		free_irq(*irq, NULL);
 	}