From: Ulf Hansson <ulf.hansson@stericsson.com>
Date: Tue, 13 Dec 2011 15:58:43 +0000 (+0100)
Subject: ARM: 7220/1: mmc: mmci: Fixup error handling for dma
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3b6e3c73851a9a4b0e6ed9d378206341dd65e8a5;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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 826598115abd..0726e59fd418 100644
--- 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);