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-rw-r--r--arch/arm/kernel/ecard.c16
-rw-r--r--drivers/ata/pata_icside.c13
-rw-r--r--drivers/ide/arm/icside.c9
-rw-r--r--drivers/net/arm/etherh.c4
-rw-r--r--drivers/scsi/arm/cumana_2.c4
-rw-r--r--drivers/scsi/arm/eesox.c4
-rw-r--r--drivers/scsi/arm/powertec.c4
-rw-r--r--include/asm-arm/ecard.h4
8 files changed, 33 insertions, 25 deletions
diff --git a/arch/arm/kernel/ecard.c b/arch/arm/kernel/ecard.c
index bdbd7da..65f1398 100644
--- a/arch/arm/kernel/ecard.c
+++ b/arch/arm/kernel/ecard.c
@@ -958,6 +958,14 @@ void ecard_release_resources(struct expansion_card *ec)
}
EXPORT_SYMBOL(ecard_release_resources);
+void ecard_setirq(struct expansion_card *ec, const struct expansion_card_ops *ops, void *irq_data)
+{
+ ec->irq_data = irq_data;
+ barrier();
+ ec->ops = ops;
+}
+EXPORT_SYMBOL(ecard_setirq);
+
/*
* Probe for an expansion card.
*
@@ -1133,6 +1141,14 @@ static int ecard_drv_remove(struct device *dev)
drv->remove(ec);
ecard_release(ec);
+ /*
+ * Restore the default operations. We ensure that the
+ * ops are set before we change the data.
+ */
+ ec->ops = &ecard_default_ops;
+ barrier();
+ ec->irq_data = NULL;
+
return 0;
}
diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c
index dbc8ee2..d7621a3 100644
--- a/drivers/ata/pata_icside.c
+++ b/drivers/ata/pata_icside.c
@@ -434,8 +434,8 @@ pata_icside_register_v5(struct ata_probe_ent *ae, struct expansion_card *ec)
ec->irqaddr = base + ICS_ARCIN_V5_INTRSTAT;
ec->irqmask = 1;
- ec->irq_data = state;
- ec->ops = &pata_icside_ops_arcin_v5;
+
+ ecard_setirq(ec, &pata_icside_ops_arcin_v5, state);
/*
* Be on the safe side - disable interrupts
@@ -480,8 +480,7 @@ pata_icside_register_v6(struct ata_probe_ent *ae, struct expansion_card *ec)
writeb(sel, ioc_base);
- ec->irq_data = state;
- ec->ops = &pata_icside_ops_arcin_v6;
+ ecard_setirq(ec, &pata_icside_ops_arcin_v6, state);
state->irq_port = easi_base;
state->ioc_base = ioc_base;
@@ -609,8 +608,7 @@ static void pata_icside_shutdown(struct expansion_card *ec)
* this register via that region.
*/
local_irq_save(flags);
- if (ec->ops)
- ec->ops->irqdisable(ec, ec->irq);
+ ec->ops->irqdisable(ec, ec->irq);
local_irq_restore(flags);
/*
@@ -638,9 +636,6 @@ static void __devexit pata_icside_remove(struct expansion_card *ec)
* don't NULL out the drvdata - devres/libata wants it
* to free the ata_host structure.
*/
- ec->ops = NULL;
- ec->irq_data = NULL;
-
if (state->dma != NO_DMA)
free_dma(state->dma);
if (state->ioc_base)
diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index 1fe0457..69c949e 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -574,8 +574,8 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
ec->irqaddr = base + ICS_ARCIN_V5_INTRSTAT;
ec->irqmask = 1;
- ec->irq_data = state;
- ec->ops = &icside_ops_arcin_v5;
+
+ ecard_setirq(ec, &icside_ops_arcin_v5, state);
/*
* Be on the safe side - disable interrupts
@@ -630,8 +630,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
writeb(sel, ioc_base);
- ec->irq_data = state;
- ec->ops = &icside_ops_arcin_v6;
+ ecard_setirq(ec, &icside_ops_arcin_v6, state);
state->irq_port = easi_base;
state->ioc_base = ioc_base;
@@ -793,8 +792,6 @@ static void __devexit icside_remove(struct expansion_card *ec)
}
ecard_set_drvdata(ec, NULL);
- ec->ops = NULL;
- ec->irq_data = NULL;
if (state->ioc_base)
iounmap(state->ioc_base);
diff --git a/drivers/net/arm/etherh.c b/drivers/net/arm/etherh.c
index 61f574a..387f1e3 100644
--- a/drivers/net/arm/etherh.c
+++ b/drivers/net/arm/etherh.c
@@ -710,8 +710,7 @@ etherh_probe(struct expansion_card *ec, const struct ecard_id *id)
* IRQ and control port handling - only for non-NIC slot cards.
*/
if (ec->slot_no != 8) {
- ec->ops = &etherh_ops;
- ec->irq_data = eh;
+ ecard_setirq(ec, &etherh_ops, eh);
} else {
/*
* If we're in the NIC slot, make sure the IRQ is enabled
@@ -778,7 +777,6 @@ static void __devexit etherh_remove(struct expansion_card *ec)
ecard_set_drvdata(ec, NULL);
unregister_netdev(dev);
- ec->ops = NULL;
if (eh->ioc_fast)
iounmap(eh->ioc_fast);
diff --git a/drivers/scsi/arm/cumana_2.c b/drivers/scsi/arm/cumana_2.c
index 82add77..f51aa34 100644
--- a/drivers/scsi/arm/cumana_2.c
+++ b/drivers/scsi/arm/cumana_2.c
@@ -450,8 +450,8 @@ cumanascsi2_probe(struct expansion_card *ec, const struct ecard_id *id)
ec->irqaddr = info->base + CUMANASCSI2_STATUS;
ec->irqmask = STATUS_INT;
- ec->irq_data = info;
- ec->ops = &cumanascsi_2_ops;
+
+ ecard_setirq(ec, &cumanascsi_2_ops, info);
ret = fas216_init(host);
if (ret)
diff --git a/drivers/scsi/arm/eesox.c b/drivers/scsi/arm/eesox.c
index ed06a8c..cc5d513 100644
--- a/drivers/scsi/arm/eesox.c
+++ b/drivers/scsi/arm/eesox.c
@@ -569,8 +569,8 @@ eesoxscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
ec->irqaddr = base + EESOX_DMASTAT;
ec->irqmask = EESOX_STAT_INTR;
- ec->irq_data = info;
- ec->ops = &eesoxscsi_ops;
+
+ ecard_setirq(ec, &eesoxscsi_ops, info);
device_create_file(&ec->dev, &dev_attr_bus_term);
diff --git a/drivers/scsi/arm/powertec.c b/drivers/scsi/arm/powertec.c
index 159047a..3cbd525 100644
--- a/drivers/scsi/arm/powertec.c
+++ b/drivers/scsi/arm/powertec.c
@@ -361,8 +361,8 @@ powertecscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
ec->irqaddr = base + POWERTEC_INTR_STATUS;
ec->irqmask = POWERTEC_INTR_BIT;
- ec->irq_data = info;
- ec->ops = &powertecscsi_ops;
+
+ ecard_setirq(ec, &powertecscsi_ops, info);
device_create_file(&ec->dev, &dev_attr_bus_term);
diff --git a/include/asm-arm/ecard.h b/include/asm-arm/ecard.h
index 3a6d3eb..8f1000e 100644
--- a/include/asm-arm/ecard.h
+++ b/include/asm-arm/ecard.h
@@ -121,7 +121,7 @@ struct in_ecid { /* Packed card ID information */
typedef struct expansion_card ecard_t;
typedef unsigned long *loader_t;
-typedef struct { /* Card handler routines */
+typedef struct expansion_card_ops { /* Card handler routines */
void (*irqenable)(ecard_t *ec, int irqnr);
void (*irqdisable)(ecard_t *ec, int irqnr);
int (*irqpending)(ecard_t *ec);
@@ -179,6 +179,8 @@ struct expansion_card {
u64 dma_mask;
};
+void ecard_setirq(struct expansion_card *ec, const struct expansion_card_ops *ops, void *irq_data);
+
struct in_chunk_dir {
unsigned int start_offset;
union {
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