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Date: Tue, 2 Sep 2008 20:30:30 +0200
From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To: linux-ide@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: [PATCH 1/2] pmac: remove superfluous pmif == NULL checks
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
drivers/ide/ppc/pmac.c | 39 +++++----------------------------------
1 file changed, 5 insertions(+), 34 deletions(-)
Index: b/drivers/ide/ppc/pmac.c
===================================================================
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -430,9 +430,6 @@ pmac_ide_selectproc(ide_drive_t *drive)
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- if (pmif == NULL)
- return;
-
if (drive->dn & 1)
writel(pmif->timings[1], PMAC_IDE_REG(IDE_TIMING_CONFIG));
else
@@ -452,9 +449,6 @@ pmac_ide_kauai_selectproc(ide_drive_t *d
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- if (pmif == NULL)
- return;
-
if (drive->dn & 1) {
writel(pmif->timings[1], PMAC_IDE_REG(IDE_KAUAI_PIO_CONFIG));
writel(pmif->timings[3], PMAC_IDE_REG(IDE_KAUAI_ULTRA_CONFIG));
@@ -475,9 +469,6 @@ pmac_ide_do_update_timings(ide_drive_t *
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- if (pmif == NULL)
- return;
-
if (pmif->kind == controller_sh_ata6 ||
pmif->kind == controller_un_ata6 ||
pmif->kind == controller_k2_ata6)
@@ -524,9 +515,6 @@ pmac_ide_set_pio_mode(ide_drive_t *drive
unsigned accessTime, recTime;
unsigned int cycle_time;
- if (pmif == NULL)
- return;
-
/* which drive is it ? */
timings = &pmif->timings[drive->dn & 1];
t = *timings;
@@ -1558,11 +1546,7 @@ pmac_ide_dma_setup(ide_drive_t *drive)
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
struct request *rq = HWGROUP(drive)->rq;
- u8 unit = drive->dn & 1, ata4;
-
- if (pmif == NULL)
- return 1;
- ata4 = (pmif->kind == controller_kl_ata4);
+ u8 unit = drive->dn & 1, ata4 = (pmif->kind == controller_kl_ata4);
if (!pmac_ide_build_dmatable(drive, rq)) {
ide_map_sg(drive, rq);
@@ -1616,12 +1600,8 @@ pmac_ide_dma_end (ide_drive_t *drive)
ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- volatile struct dbdma_regs __iomem *dma;
+ volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
u32 dstat;
-
- if (pmif == NULL)
- return 0;
- dma = pmif->dma_regs;
drive->waiting_for_dma = 0;
dstat = readl(&dma->status);
@@ -1646,13 +1626,9 @@ pmac_ide_dma_test_irq (ide_drive_t *driv
ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- volatile struct dbdma_regs __iomem *dma;
+ volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
unsigned long status, timeout;
- if (pmif == NULL)
- return 0;
- dma = pmif->dma_regs;
-
/* We have to things to deal with here:
*
* - The dbdma won't stop if the command was started
@@ -1705,14 +1681,9 @@ pmac_ide_dma_lost_irq (ide_drive_t *driv
ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- volatile struct dbdma_regs __iomem *dma;
- unsigned long status;
-
- if (pmif == NULL)
- return;
- dma = pmif->dma_regs;
+ volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
+ unsigned long status = readl(&dma->status);
- status = readl(&dma->status);
printk(KERN_ERR "ide-pmac lost interrupt, dma status: %lx\n", status);
}
--
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