From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Fri, 19 Oct 2007 22:32:37 +0000 (+0200)
Subject: ide: check ->dma_setup() return value in flagged_taskfile()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=dd35b7bb86c1ae6adddf68db71481144941246d1;p=linux-beck.git

ide: check ->dma_setup() return value in flagged_taskfile()

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

diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 24c6c3f5e208..6812f4788789 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -837,9 +837,11 @@ ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
 		case TASKFILE_OUT_DMA:
 		case TASKFILE_IN_DMAQ:
 		case TASKFILE_IN_DMA:
-			hwif->dma_setup(drive);
-			hwif->dma_exec_cmd(drive, taskfile->command);
-			hwif->dma_start(drive);
+			if (!hwif->dma_setup(drive)) {
+				hwif->dma_exec_cmd(drive, taskfile->command);
+				hwif->dma_start(drive);
+				return ide_started;
+			}
 			break;
 
 	        default:
@@ -853,7 +855,8 @@ ide_startstop_t flagged_taskfile (ide_drive_t *drive, ide_task_t *task)
 				return task->prehandler(drive, task->rq);
 			}
 			ide_execute_command(drive, taskfile->command, task->handler, WAIT_WORSTCASE, NULL);
+			return ide_started;
 	}
 
-	return ide_started;
+	return ide_stopped;
 }