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authorJeff Garzik <jeff@garzik.org>2008-04-18 19:22:52 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-04-25 09:52:30 -0500
commite19166d5df10be0ea404c4e346cf6be93bfb1d63 (patch)
tree43004d05713dc50a2fcb732b6514b5aa297f6347 /drivers/scsi/aha152x.c
parent8911c9e3343c647b59727b47b10feca7ee9ac9c3 (diff)
[SCSI] aha152x, eata, u14-34f: minor irq handler cleanups
- remove pointless casts from void* - remove needless references to 'irq' function argument, when that information is already stored somewhere in a driver-private struct. - where the 'irq' function argument is known never to be used, rename it to 'dummy' to make this more obvious - remove always-false tests for dev_id==NULL - remove always-true tests for 'irq == host_struct->irq' - replace per-irq lookup functions and tables with a direct reference to data object obtained via 'dev_id' function argument, passed from request_irq() This change's main purpose is to prepare for the patchset in jgarzik/misc-2.6.git#irq-remove, that explores removal of the never-used 'irq' argument in each interrupt handler. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/aha152x.c')
-rw-r--r--drivers/scsi/aha152x.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index 6ccdc96cc48..a09b2d3fdf5 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -1432,15 +1432,10 @@ static void run(struct work_struct *work)
*/
static irqreturn_t intr(int irqno, void *dev_id)
{
- struct Scsi_Host *shpnt = (struct Scsi_Host *)dev_id;
+ struct Scsi_Host *shpnt = dev_id;
unsigned long flags;
unsigned char rev, dmacntrl0;
- if (!shpnt) {
- printk(KERN_ERR "aha152x: catched interrupt %d for unknown controller.\n", irqno);
- return IRQ_NONE;
- }
-
/*
* Read a couple of registers that are known to not be all 1's. If
* we read all 1's (-1), that means that either: