From 34c69b601b2ec8fc8ff6657a547ce3865d58e220 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Tue, 13 Nov 2007 22:09:15 +0100
Subject: 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>
---
 drivers/ide/cris/ide-cris.c | 3 +--
 drivers/ide/pci/cs5530.c    | 3 +--
 drivers/ide/pci/sc1200.c    | 3 +--
 drivers/ide/pci/sis5513.c   | 1 -
 4 files changed, 3 insertions(+), 7 deletions(-)

(limited to 'drivers/ide')

diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c
index e196aefa207..7f5bc2ee6c7 100644
--- 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 599408952bd..547690395ee 100644
--- 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 0a7b3202066..707d5ff66b0 100644
--- 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 6b7bb53acef..f6e2ab3dd16 100644
--- 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;
 	}
 }
-- 
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