[U-Boot] [PATCH 1/4] mmc: dw_mmc: Stop bounce buffer even in case of failure

[Marek Vasut]

The driver didn't stop the bounce buffer in case a data transfer
failed. This would lead to memory leakage if the communication
between the CPU and the card is unreliable. Add the missing call
to stop the bounce buffer.

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Dinh Nguyen <dinguyen at opensource.altera.com>
Cc: Pantelis Antoniou <panto at antoniou-consulting.com>
Cc: Tom Rini <trini at konsulko.com>
---
 drivers/mmc/dw_mmc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
index 53a8aca..3fffa71 100644
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -215,6 +215,7 @@ static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
 			mask = dwmci_readl(host, DWMCI_RINTSTS);
 			if (mask & (DWMCI_DATA_ERR | DWMCI_DATA_TOUT)) {
 				printf("%s: DATA ERROR!\n", __func__);
+				bounce_buffer_stop(&bbstate);
 				return -1;
 			}
 		} while (!(mask & DWMCI_INTMSK_DTO));
-- 
2.1.4