ide: don't BUG() on unsupported transfer modes

Fix ide-cris, cs5530, sc1200 and sis5513 host drivers to just return instead
of OOPS-ing for unsupported modes in ->set_dma_mode methods.

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

diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c
index e196aef..7f5bc2e 100644 (file)
--- a/drivers/ide/cris/ide-cris.c
+++ b/drivers/ide/cris/ide-cris.c
@@ -748,8 +748,7 @@ static void cris_set_dma_mode(ide_drive_t *drive, const u8 speed)
                        hold = ATA_DMA2_HOLD;
                        break;
                default:
-                       BUG();
-                       break;
+                       return;
        }
 
        if (speed >= XFER_UDMA_0)

diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index 5994089..5476903 100644 (file)
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -117,8 +117,7 @@ static void cs5530_set_dma_mode(ide_drive_t *drive, const u8 mode)
                case XFER_MW_DMA_1:     timings = 0x00012121; break;
                case XFER_MW_DMA_2:     timings = 0x00002020; break;
                default:
-                       BUG();
-                       break;
+                       return;
        }
        basereg = CS5530_BASEREG(drive->hwif);
        reg = inl(basereg + 4);                 /* get drive0 config register */

diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index 0a7b320..707d5ff 100644 (file)
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -186,8 +186,7 @@ static void sc1200_set_dma_mode(ide_drive_t *drive, const u8 mode)
                        }
                        break;
                default:
-                       BUG();
-                       break;
+                       return;
        }
 
        if (unit == 0) {                        /* are we configuring drive0? */

diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
index 6b7bb53..f6e2ab3 100644 (file)
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -356,7 +356,6 @@ static void sis_set_dma_mode(ide_drive_t *drive, const u8 speed)
                        sis_program_timings(drive, speed);
                        break;
                default:
-                       BUG();
                        break;
        }
 }