ARM: 7220/1: mmc: mmci: Fixup error handling for dma

When getting a cmd irq during an ongoing data transfer
with dma, the dma job were never terminated. This is now
corrected.

Cc: <stable@vger.kernel.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Per Forlin <per.forlin@stericsson.com>
Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 8265981..0726e59 100644 (file)
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -755,8 +755,12 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd,
        }
 
        if (!cmd->data || cmd->error) {
-               if (host->data)
+               if (host->data) {
+                       /* Terminate the DMA transfer */
+                       if (dma_inprogress(host))
+                               mmci_dma_data_error(host);
                        mmci_stop_data(host);
+               }
                mmci_request_end(host, cmd->mrq);
        } else if (!(cmd->data->flags & MMC_DATA_READ)) {
                mmci_start_data(host, cmd->data);