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mmc: atmel-mci: fix incorrect setting of host->data to NULL

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Setting host->data to NULL is incorrect sequence in STATE_SENDING_STOP
state of FSM: This early setting leads to the skip of dma_unmap_sg()
in atmci_dma_cleanup() which is a bug.

Idea taken from dw_mmc by Seungwon Jeon.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Nicolas Ferre 2012-07-06 11:58:33 +02:00 committed by Chris Ball
parent eb6d5ae1c9
commit 41b4e9a194
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/host/atmel-mci.c
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@ -1685,7 +1685,6 @@ static void atmci_tasklet_func(unsigned long priv)
dev_dbg(&host->pdev->dev, "FSM: cmd ready\n");
host->cmd = NULL;
host->data = NULL;
data->bytes_xfered = data->blocks * data->blksz;
data->error = 0;
atmci_command_complete(host, mrq->stop);
@ -1699,6 +1698,7 @@ static void atmci_tasklet_func(unsigned long priv)
atmci_writel(host, ATMCI_IER, ATMCI_NOTBUSY);
state = STATE_WAITING_NOTBUSY;
}
host->data = NULL;
break;
case STATE_END_REQUEST: