pmac: remove superfluous pmif == NULL checks

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 5 insertions, 34 deletions

diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index 5b083700d882..7f2ce6195d1e 100644
--- 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 *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_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 *drive)
         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, const u8 pio)
         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 *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;
         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 *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;
-        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);
 }