mmc: dw_mmc: Handle return value from bounce_buffer_start()

[platform/kernel/u-boot.git] / drivers / mmc / dw_mmc.c

diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
index d4976ac..2faaa43 100644 (file)
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -270,14 +270,20 @@ static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
                        dwmci_wait_reset(host, DWMCI_CTRL_FIFO_RESET);
                } else {
                        if (data->flags == MMC_DATA_READ) {
-                               bounce_buffer_start(&bbstate, (void*)data->dest,
+                               ret = bounce_buffer_start(&bbstate,
+                                               (void*)data->dest,
                                                data->blocksize *
                                                data->blocks, GEN_BB_WRITE);
                        } else {
-                               bounce_buffer_start(&bbstate, (void*)data->src,
+                               ret = bounce_buffer_start(&bbstate,
+                                               (void*)data->src,
                                                data->blocksize *
                                                data->blocks, GEN_BB_READ);
                        }
+
+                       if (ret)
+                               return ret;
+
                        dwmci_prepare_data(host, data, cur_idmac,
                                           bbstate.bounce_buffer);
                }