genirq: Fix can_request_irq() for IRQs without an action

Commit 02725e7471b8 ('genirq: Use irq_get/put functions'),
inadvertently changed can_request_irq() to return 0 for IRQs that have
no action.  This causes pcibios_lookup_irq() to select only IRQs that
already have an action with IRQF_SHARED set, or to fail if there are
none.  Change can_request_irq() to return 1 for IRQs that have no
action (if the first two conditions are met).

Reported-by: Bjarni Ingi Gislason <[email protected]>
Tested-by: Bjarni Ingi Gislason <[email protected]> (against 3.2)
Signed-off-by: Ben Hutchings <[email protected]>
Cc: [email protected]
Cc: [email protected] # 2.6.39+
Link: http://bugs.debian.org/709647
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>

0 files changed, 0 insertions, 0 deletions