ide: allow to wrap interrupt handler

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Cc: Andrew Victor <linux@maxim.org.za>
[bart: minor checkpatch.pl / CodingStyle fixups]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

3 files changed, 8 insertions, 1 deletions

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 9ff90cb1dbf1..a9a6c208288a 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1162,6 +1162,7 @@ out_early:
 
         return irq_ret;
 }
+EXPORT_SYMBOL_GPL(ide_intr);
 
 /**
  *      ide_do_drive_cmd        -       issue IDE special command
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index ce0818a993f6..ee8e3e7cad51 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -950,6 +950,7 @@ static int ide_port_setup_devices(ide_hwif_t *hwif)
 static int init_irq (ide_hwif_t *hwif)
 {
         struct ide_io_ports *io_ports = &hwif->io_ports;
+        irq_handler_t irq_handler;
         int sa = 0;
 
         mutex_lock(&ide_cfg_mtx);
@@ -959,6 +960,10 @@ static int init_irq (ide_hwif_t *hwif)
         hwif->timer.function = &ide_timer_expiry;
         hwif->timer.data = (unsigned long)hwif;
 
+        irq_handler = hwif->host->irq_handler;
+        if (irq_handler == NULL)
+                irq_handler = ide_intr;
+
 #if defined(__mc68000__)
         sa = IRQF_SHARED;
 #endif /* __mc68000__ */
@@ -969,7 +974,7 @@ static int init_irq (ide_hwif_t *hwif)
         if (io_ports->ctl_addr)
                 hwif->tp_ops->set_irq(hwif, 1);
 
-        if (request_irq(hwif->irq, &ide_intr, sa, hwif->name, hwif))
+        if (request_irq(hwif->irq, irq_handler, sa, hwif->name, hwif))
                 goto out_up;
 
         if (!hwif->rqsize) {
diff --git a/include/linux/ide.h b/include/linux/ide.h
index fe235b65207e..e0cedfe9fad4 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -866,6 +866,7 @@ struct ide_host {
         unsigned int    n_ports;
         struct device   *dev[2];
         unsigned int    (*init_chipset)(struct pci_dev *);
+        irq_handler_t   irq_handler;
         unsigned long   host_flags;
         void            *host_priv;
         ide_hwif_t      *cur_port;      /* for hosts requiring serialization */