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Add dummy_signal_irq function to save check in ISR 

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Alex Dubov 2006-12-11 01:55:31 +11:00 committed by Pierre Ossman
parent 50743f4cb1
commit 217334d14d
2 changed files with 13 additions and 6 deletions
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11
drivers/misc/tifm_7xx1.c
View File

@ -71,6 +71,7 @@ static void tifm_7xx1_remove_media(struct work_struct *work)
static irqreturn_t tifm_7xx1_isr(int irq, void *dev_id) static irqreturn_t tifm_7xx1_isr(int irq, void *dev_id)
{ {
struct tifm_adapter *fm = dev_id; struct tifm_adapter *fm = dev_id;
struct tifm_dev *sock;
unsigned int irq_status; unsigned int irq_status;
unsigned int sock_irq_status, cnt; unsigned int sock_irq_status, cnt;
@ -85,15 +86,13 @@ static irqreturn_t tifm_7xx1_isr(int irq, void *dev_id)
writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE); writel(TIFM_IRQ_ENABLE, fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
for (cnt = 0; cnt < fm->max_sockets; cnt++) { for (cnt = 0; cnt < fm->max_sockets; cnt++) {
sock = fm->sockets[cnt];
sock_irq_status = (irq_status >> cnt) & sock_irq_status = (irq_status >> cnt) &
(TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK); (TIFM_IRQ_FIFOMASK | TIFM_IRQ_CARDMASK);
if (fm->sockets[cnt]) { if (sock) {
if (sock_irq_status && if (sock_irq_status)
fm->sockets[cnt]->signal_irq) sock->signal_irq(sock, sock_irq_status);
fm->sockets[cnt]->
signal_irq(fm->sockets[cnt],
sock_irq_status);
if (irq_status & (1 << cnt)) if (irq_status & (1 << cnt))
fm->remove_mask |= 1 << cnt; fm->remove_mask |= 1 << cnt;

8
drivers/misc/tifm_core.c
View File

@ -145,6 +145,12 @@ void tifm_free_device(struct device *dev)
} }
EXPORT_SYMBOL(tifm_free_device); EXPORT_SYMBOL(tifm_free_device);
static void tifm_dummy_signal_irq(struct tifm_dev *sock,
unsigned int sock_irq_status)
{
return;
}
struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm) struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm)
{ {
struct tifm_dev *dev = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL); struct tifm_dev *dev = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL);
@ -155,6 +161,7 @@ struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm)
dev->dev.parent = fm->dev; dev->dev.parent = fm->dev;
dev->dev.bus = &tifm_bus_type; dev->dev.bus = &tifm_bus_type;
dev->dev.release = tifm_free_device; dev->dev.release = tifm_free_device;
dev->signal_irq = tifm_dummy_signal_irq;
} }
return dev; return dev;
} }
@ -212,6 +219,7 @@ static int tifm_device_remove(struct device *dev)
struct tifm_driver *drv = fm_dev->drv; struct tifm_driver *drv = fm_dev->drv;
if (drv) { if (drv) {
fm_dev->signal_irq = tifm_dummy_signal_irq;
if (drv->remove) if (drv->remove)
drv->remove(fm_dev); drv->remove(fm_dev);
fm_dev->drv = NULL; fm_dev->drv = NULL;