Various drivers' irq handlers: kill dead code, needless casts
- Eliminate casts to/from void*
- Eliminate checks for conditions that never occur. These typically
fall into two classes:
1) Checking for 'dev_id == NULL', then it is never called with
NULL as an argument.
2) Checking for invalid irq number, when the only caller (the
system) guarantees the irq handler is called with the proper
'irq' number argument.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/pcmcia/at91_cf.c b/drivers/pcmcia/at91_cf.c
index 991e084..7f5df9a 100644
--- a/drivers/pcmcia/at91_cf.c
+++ b/drivers/pcmcia/at91_cf.c
@@ -66,7 +66,7 @@
static irqreturn_t at91_cf_irq(int irq, void *_cf)
{
- struct at91_cf_socket *cf = (struct at91_cf_socket *) _cf;
+ struct at91_cf_socket *cf = _cf;
if (irq == cf->board->det_pin) {
unsigned present = at91_cf_present(cf);