ide: make void and rename ide_dma_lostirq() method

Since ide_dma_lostirq() method's result is discarded, make it return 'void'.
While at it, rename the method to dma_lost_irq(), drop the '__' prefix from the
default method's name, and do some cleanups in this method driver-wise:

- in aec62xx.c, rename the method in accordance with other drivers, and get rid
  of unnecessary variables there;

- in pdc202xx_old.c, define/use 'hwif' variable;

- in sgiioc4.c, rearrange the code to call the resetproc() method directly.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

12 files changed, 41 insertions, 49 deletions

diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index 66f826252aee..543f8b51f6b1 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -461,10 +461,9 @@ static int icside_dma_timeout(ide_drive_t *drive)
         return icside_dma_end(drive);
 }
 
-static int icside_dma_lostirq(ide_drive_t *drive)
+static void icside_dma_lost_irq(ide_drive_t *drive)
 {
         printk(KERN_ERR "%s: IRQ lost\n", drive->name);
-        return 1;
 }
 
 static void icside_dma_init(ide_hwif_t *hwif)
@@ -491,7 +490,7 @@ static void icside_dma_init(ide_hwif_t *hwif)
         hwif->ide_dma_end       = icside_dma_end;
         hwif->ide_dma_test_irq  = icside_dma_test_irq;
         hwif->ide_dma_timeout   = icside_dma_timeout;
-        hwif->ide_dma_lostirq   = icside_dma_lostirq;
+        hwif->dma_lost_irq      = icside_dma_lost_irq;
 
         hwif->drives[0].autodma = hwif->autodma;
         hwif->drives[1].autodma = hwif->autodma;
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index ead141e2db9e..ce322602982e 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -850,13 +850,12 @@ int ide_set_dma(ide_drive_t *drive)
 EXPORT_SYMBOL_GPL(ide_set_dma);
 
 #ifdef CONFIG_BLK_DEV_IDEDMA_PCI
-int __ide_dma_lostirq (ide_drive_t *drive)
+void ide_dma_lost_irq (ide_drive_t *drive)
 {
         printk("%s: DMA interrupt recovery\n", drive->name);
-        return 1;
 }
 
-EXPORT_SYMBOL(__ide_dma_lostirq);
+EXPORT_SYMBOL(ide_dma_lost_irq);
 
 int __ide_dma_timeout (ide_drive_t *drive)
 {
@@ -1020,8 +1019,8 @@ void ide_setup_dma (ide_hwif_t *hwif, unsigned long dma_base, unsigned int num_p
                 hwif->ide_dma_test_irq = &__ide_dma_test_irq;
         if (!hwif->ide_dma_timeout)
                 hwif->ide_dma_timeout = &__ide_dma_timeout;
-        if (!hwif->ide_dma_lostirq)
-                hwif->ide_dma_lostirq = &__ide_dma_lostirq;
+        if (!hwif->dma_lost_irq)
+                hwif->dma_lost_irq = &ide_dma_lost_irq;
 
         if (hwif->chipset != ide_trm290) {
                 u8 dma_stat = hwif->INB(hwif->dma_status);
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index bfe8f1b712ba..9f4f8878b551 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -1466,7 +1466,7 @@ void ide_timer_expiry (unsigned long data)
                                 startstop = handler(drive);
                         } else if (drive_is_ready(drive)) {
                                 if (drive->waiting_for_dma)
-                                        (void) hwgroup->hwif->ide_dma_lostirq(drive);
+                                        hwgroup->hwif->dma_lost_irq(drive);
                                 (void)ide_ack_intr(hwif);
                                 printk(KERN_WARNING "%s: lost interrupt\n", drive->name);
                                 startstop = handler(drive);
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 0cd76bf66833..8a8674d3223f 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -496,7 +496,7 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
         hwif->ide_dma_clear_irq         = tmp_hwif->ide_dma_clear_irq;
         hwif->dma_host_on               = tmp_hwif->dma_host_on;
         hwif->dma_host_off              = tmp_hwif->dma_host_off;
-        hwif->ide_dma_lostirq           = tmp_hwif->ide_dma_lostirq;
+        hwif->dma_lost_irq              = tmp_hwif->dma_lost_irq;
         hwif->ide_dma_timeout           = tmp_hwif->ide_dma_timeout;
 
         hwif->OUTB                      = tmp_hwif->OUTB;
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index ca95e990862e..e8935519edbe 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -456,10 +456,9 @@ static void auide_dma_off_quietly(ide_drive_t *drive)
         drive->using_dma = 0;
 }
 
-static int auide_dma_lostirq(ide_drive_t *drive)
+static void auide_dma_lost_irq(ide_drive_t *drive)
 {
         printk(KERN_ERR "%s: IRQ lost\n", drive->name);
-        return 0;
 }
 
 static void auide_ddma_tx_callback(int irq, void *param)
@@ -731,7 +730,7 @@ static int au_ide_probe(struct device *dev)
         hwif->ide_dma_test_irq          = &auide_dma_test_irq;
         hwif->dma_host_off              = &auide_dma_host_off;
         hwif->dma_host_on               = &auide_dma_host_on;
-        hwif->ide_dma_lostirq           = &auide_dma_lostirq;
+        hwif->dma_lost_irq              = &auide_dma_lost_irq;
         hwif->ide_dma_on                = &auide_dma_on;
 
         hwif->autodma                   = 1;
diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c
index b173bc66ce1e..bed32d0eaa37 100644
--- a/drivers/ide/pci/aec62xx.c
+++ b/drivers/ide/pci/aec62xx.c
@@ -172,12 +172,9 @@ static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
         return -1;
 }
 
-static int aec62xx_irq_timeout (ide_drive_t *drive)
+static void aec62xx_dma_lost_irq (ide_drive_t *drive)
 {
-        ide_hwif_t *hwif        = HWIF(drive);
-        struct pci_dev *dev     = hwif->pci_dev;
-
-        switch(dev->device) {
+        switch (HWIF(drive)->pci_dev->device) {
                 case PCI_DEVICE_ID_ARTOP_ATP860:
                 case PCI_DEVICE_ID_ARTOP_ATP860R:
                 case PCI_DEVICE_ID_ARTOP_ATP865:
@@ -186,7 +183,6 @@ static int aec62xx_irq_timeout (ide_drive_t *drive)
                 default:
                         break;
         }
-        return 0;
 }
 
 static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
@@ -254,7 +250,7 @@ static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
         hwif->mwdma_mask = 0x07;
 
         hwif->ide_dma_check     = &aec62xx_config_drive_xfer_rate;
-        hwif->ide_dma_lostirq   = &aec62xx_irq_timeout;
+        hwif->dma_lost_irq      = &aec62xx_dma_lost_irq;
 
         if (!noautodma)
                 hwif->autodma = 1;
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
index c33d0b0f11c9..34d06dc7f2b2 100644
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -737,7 +737,7 @@ static int hpt366_config_drive_xfer_rate(ide_drive_t *drive)
  * This is specific to the HPT366 UDMA chipset
  * by HighPoint|Triones Technologies, Inc.
  */
-static int hpt366_ide_dma_lostirq(ide_drive_t *drive)
+static void hpt366_dma_lost_irq(ide_drive_t *drive)
 {
         struct pci_dev *dev = HWIF(drive)->pci_dev;
         u8 mcr1 = 0, mcr3 = 0, scr1 = 0;
@@ -749,7 +749,7 @@ static int hpt366_ide_dma_lostirq(ide_drive_t *drive)
                 drive->name, __FUNCTION__, mcr1, mcr3, scr1);
         if (scr1 & 0x10)
                 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
-        return __ide_dma_lostirq(drive);
+        ide_dma_lost_irq(drive);
 }
 
 static void hpt370_clear_engine(ide_drive_t *drive)
@@ -1355,7 +1355,7 @@ static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
                 hwif->ide_dma_end       = &hpt370_ide_dma_end;
                 hwif->ide_dma_timeout   = &hpt370_ide_dma_timeout;
         } else
-                hwif->ide_dma_lostirq   = &hpt366_ide_dma_lostirq;
+                hwif->dma_lost_irq      = &hpt366_dma_lost_irq;
 
         if (!noautodma)
                 hwif->autodma = 1;
diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c
index 23844687deea..5013df84e971 100644
--- a/drivers/ide/pci/pdc202xx_old.c
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -267,11 +267,14 @@ somebody_else:
         return (dma_stat & 4) == 4;     /* return 1 if INTR asserted */
 }
 
-static int pdc202xx_ide_dma_lostirq(ide_drive_t *drive)
+static void pdc202xx_dma_lost_irq(ide_drive_t *drive)
 {
-        if (HWIF(drive)->resetproc != NULL)
-                HWIF(drive)->resetproc(drive);
-        return __ide_dma_lostirq(drive);
+        ide_hwif_t *hwif = HWIF(drive);
+
+        if (hwif->resetproc != NULL)
+                hwif->resetproc(drive);
+
+        ide_dma_lost_irq(drive);
 }
 
 static int pdc202xx_ide_dma_timeout(ide_drive_t *drive)
@@ -347,7 +350,7 @@ static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
         hwif->err_stops_fifo = 1;
 
         hwif->ide_dma_check = &pdc202xx_config_drive_xfer_rate;
-        hwif->ide_dma_lostirq = &pdc202xx_ide_dma_lostirq;
+        hwif->dma_lost_irq = &pdc202xx_dma_lost_irq;
         hwif->ide_dma_timeout = &pdc202xx_ide_dma_timeout;
 
         if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) {
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index d3185e29a38e..53bee59264ef 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -316,14 +316,6 @@ static void sgiioc4_dma_host_off(ide_drive_t * drive)
         sgiioc4_clearirq(drive);
 }
 
-static int
-sgiioc4_ide_dma_lostirq(ide_drive_t * drive)
-{
-        HWIF(drive)->resetproc(drive);
-
-        return __ide_dma_lostirq(drive);
-}
-
 static void
 sgiioc4_resetproc(ide_drive_t * drive)
 {
@@ -331,6 +323,14 @@ sgiioc4_resetproc(ide_drive_t * drive)
         sgiioc4_clearirq(drive);
 }
 
+static void
+sgiioc4_dma_lost_irq(ide_drive_t * drive)
+{
+        sgiioc4_resetproc(drive);
+
+        ide_dma_lost_irq(drive);
+}
+
 static u8
 sgiioc4_INB(unsigned long port)
 {
@@ -607,7 +607,7 @@ ide_init_sgiioc4(ide_hwif_t * hwif)
         hwif->ide_dma_test_irq = &sgiioc4_ide_dma_test_irq;
         hwif->dma_host_on = &sgiioc4_dma_host_on;
         hwif->dma_host_off = &sgiioc4_dma_host_off;
-        hwif->ide_dma_lostirq = &sgiioc4_ide_dma_lostirq;
+        hwif->dma_lost_irq = &sgiioc4_dma_lost_irq;
         hwif->ide_dma_timeout = &__ide_dma_timeout;
 
         hwif->INB = &sgiioc4_INB;
diff --git a/drivers/ide/pci/sl82c105.c b/drivers/ide/pci/sl82c105.c
index 7c383d9cc472..202ce4965b60 100644
--- a/drivers/ide/pci/sl82c105.c
+++ b/drivers/ide/pci/sl82c105.c
@@ -195,7 +195,7 @@ static inline void sl82c105_reset_host(struct pci_dev *dev)
  * This function is called when the IDE timer expires, the drive
  * indicates that it is READY, and we were waiting for DMA to complete.
  */
-static int sl82c105_ide_dma_lostirq(ide_drive_t *drive)
+static void sl82c105_dma_lost_irq(ide_drive_t *drive)
 {
         ide_hwif_t *hwif        = HWIF(drive);
         struct pci_dev *dev     = hwif->pci_dev;
@@ -222,9 +222,6 @@ static int sl82c105_ide_dma_lostirq(ide_drive_t *drive)
         }
 
         sl82c105_reset_host(dev);
-
-        /* __ide_dma_lostirq would return 1, so we do as well */
-        return 1;
 }
 
 /*
@@ -441,7 +438,7 @@ static void __devinit init_hwif_sl82c105(ide_hwif_t *hwif)
         hwif->ide_dma_check             = &sl82c105_ide_dma_check;
         hwif->ide_dma_on                = &sl82c105_ide_dma_on;
         hwif->dma_off_quietly           = &sl82c105_dma_off_quietly;
-        hwif->ide_dma_lostirq           = &sl82c105_ide_dma_lostirq;
+        hwif->dma_lost_irq              = &sl82c105_dma_lost_irq;
         hwif->dma_start                 = &sl82c105_dma_start;
         hwif->ide_dma_timeout           = &sl82c105_ide_dma_timeout;
 
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index 45fc36f0f219..ca72ad202ebc 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -2004,20 +2004,19 @@ static void pmac_ide_dma_host_on(ide_drive_t *drive)
 {
 }
 
-static int
-pmac_ide_dma_lostirq (ide_drive_t *drive)
+static void
+pmac_ide_dma_lost_irq (ide_drive_t *drive)
 {
         pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)HWIF(drive)->hwif_data;
         volatile struct dbdma_regs __iomem *dma;
         unsigned long status;
 
         if (pmif == NULL)
-                return 0;
+                return;
         dma = pmif->dma_regs;
 
         status = readl(&dma->status);
         printk(KERN_ERR "ide-pmac lost interrupt, dma status: %lx\n", status);
-        return 0;
 }
 
 /*
@@ -2058,7 +2057,7 @@ pmac_ide_setup_dma(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
         hwif->dma_host_off = &pmac_ide_dma_host_off;
         hwif->dma_host_on = &pmac_ide_dma_host_on;
         hwif->ide_dma_timeout = &__ide_dma_timeout;
-        hwif->ide_dma_lostirq = &pmac_ide_dma_lostirq;
+        hwif->dma_lost_irq = &pmac_ide_dma_lost_irq;
 
         hwif->atapi_dma = 1;
         switch(pmif->kind) {
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 1e365acdd369..d7f74e7c5155 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -735,7 +735,7 @@ typedef struct hwif_s {
         void (*ide_dma_clear_irq)(ide_drive_t *drive);
         void (*dma_host_on)(ide_drive_t *drive);
         void (*dma_host_off)(ide_drive_t *drive);
-        int (*ide_dma_lostirq)(ide_drive_t *drive);
+        void (*dma_lost_irq)(ide_drive_t *drive);
         int (*ide_dma_timeout)(ide_drive_t *drive);
 
         void (*OUTB)(u8 addr, unsigned long port);
@@ -1304,7 +1304,7 @@ extern int __ide_dma_check(ide_drive_t *);
 extern int ide_dma_setup(ide_drive_t *);
 extern void ide_dma_start(ide_drive_t *);
 extern int __ide_dma_end(ide_drive_t *);
-extern int __ide_dma_lostirq(ide_drive_t *);
+extern void ide_dma_lost_irq(ide_drive_t *);
 extern int __ide_dma_timeout(ide_drive_t *);
 #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */