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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-31 22:15:20 +0400
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-31 22:15:20 +0400
commit4453011f959a5f5c6c7a33aea54fe17f5e43a867 (patch)
tree7ac781ab8d82b21cdf932b1736026ebe9fea757a /drivers/ide/tx4939ide.c
parent1cee52de28aa687760ad262ad0834d1bf6c6d2ac (diff)
downloadlinux-4453011f959a5f5c6c7a33aea54fe17f5e43a867.tar.xz
ide: destroy DMA mappings after ending DMA (v2)
Move ide_destroy_dmatable() call out from ->dma_end method to {ide_pc,cdrom_newpc,ide_dma}_intr(), ide_dma_timeout_retry() and sgiioc4_resetproc(). This causes minor/safe behavior changes w.r.t.: * cmd64x.c::cmd64{8,x}_dma_end() * cs5536.c::cs5536_dma_end() * icside.c::icside_dma_end() * it821x.c::it821x_dma_end() * scc_pata.c::__scc_dma_end() * sl82c105.c::sl82c105_dma_end() * tx4939ide.c::tx4939ide_dma_end() v2: * Fix build for CONFIG_BLK_DEV_IDEDMA=n (reported by Randy Dunlap). Cc: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/tx4939ide.c')
-rw-r--r--drivers/ide/tx4939ide.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index 53f99853b065..f62ced855cf3 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -335,11 +335,9 @@ static int tx4939ide_dma_end(ide_drive_t *drive)
/* read and clear the INTR & ERROR bits */
dma_stat = tx4939ide_clear_dma_status(base);
- /* purge DMA mappings */
- ide_destroy_dmatable(drive);
- /* verify good DMA status */
wmb();
+ /* verify good DMA status */
if ((dma_stat & (ATA_DMA_INTR | ATA_DMA_ERR | ATA_DMA_ACTIVE)) == 0 &&
(ctl & (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST)) ==
(TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST))