Messages in this thread Patch in this message | | | From | Nicolas Ferre <> | Subject | [PATCH] mmc: atmel-mci: fix incorrect setting of host->data to NULL | Date | Fri, 6 Jul 2012 11:58:33 +0200 |
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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 form dw_mmc by Seungwon Jeon.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Seungwon Jeon <tgih.jun@samsung.com> --- drivers/mmc/host/atmel-mci.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 78e5326..2ce109d 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -1860,7 +1860,6 @@ 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); @@ -1874,6 +1873,7 @@ 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: -- 1.7.5.4
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