mmc: dw_mmc: NULL dereference in error message

The "host->dms->ch" pointer is NULL here so we can't use it to print the
error message.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 63eefea9645e..57a9577bc35c 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -752,9 +752,7 @@ static int dw_mci_edmac_init(struct dw_mci *host)
 
         host->dms->ch = dma_request_slave_channel(host->dev, "rx-tx");
         if (!host->dms->ch) {
-                dev_err(host->dev,
-                        "Failed to get external DMA channel %d\n",
-                        host->dms->ch->chan_id);
+                dev_err(host->dev, "Failed to get external DMA channel.\n");
                 kfree(host->dms);
                 host->dms = NULL;
                 return -ENXIO;