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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2009-04-08 14:12:49 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-04-08 14:12:49 +0200
commit253275c52c8f5848df63f140977ef19800f2dfca (patch)
treeb770446fe6b5c6b58d7f6b93c41e4cd0c7c73afe /drivers/ide/tx4939ide.c
parentedafcf73dca2f9531c78eec130df84a8c9654b3b (diff)
tx4939ide: remove wmb()
* define CHECK_DMA_MASK * remove use of wmb() Reported-by: Grant Grundler <grundler@google.com> Reviewed-by: Grant Grundler <grundler@google.com> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Diffstat (limited to 'drivers/ide/tx4939ide.c')
-rw-r--r--drivers/ide/tx4939ide.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index 0040a9a3e26..2e27fcd4186 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -327,15 +327,15 @@ static int tx4939ide_dma_end(ide_drive_t *drive)
/* read and clear the INTR & ERROR bits */
dma_stat = tx4939ide_clear_dma_status(base);
- wmb();
+#define CHECK_DMA_MASK (ATA_DMA_ACTIVE | ATA_DMA_ERR | ATA_DMA_INTR)
/* verify good DMA status */
- if ((dma_stat & (ATA_DMA_INTR | ATA_DMA_ERR | ATA_DMA_ACTIVE)) == 0 &&
+ if ((dma_stat & CHECK_DMA_MASK) == 0 &&
(ctl & (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST)) ==
(TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST))
/* INT_IDE lost... bug? */
return 0;
- return ((dma_stat & (ATA_DMA_INTR | ATA_DMA_ERR | ATA_DMA_ACTIVE)) !=
+ return ((dma_stat & CHECK_DMA_MASK) !=
ATA_DMA_INTR) ? 0x10 | dma_stat : 0;
}