mmc: dw_mmc: return the result of mmc_add_host()

Check the result of mmc_add_host() and return the value.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 98342213ed21..6da19c15d73b 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1990,7 +1990,9 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
 
         slot->wp_gpio = dw_mci_of_get_wp_gpio(host->dev, slot->id);
 
-        mmc_add_host(mmc);
+        ret = mmc_add_host(mmc);
+        if (ret)
+                goto err_setup_bus;
 
 #if defined(CONFIG_DEBUG_FS)
         dw_mci_init_debugfs(slot);