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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>
Ulf Hansson 13 年之前
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3b6e3c7385
共有 1 個文件被更改,包括 5 次插入1 次删除
  1. 5 1
      drivers/mmc/host/mmci.c

+ 5 - 1
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);