[PATCH 2/2] mmc: dw-mmc: fix the return value for exynos's setup_clock()

[Jaehoon Chung <jh80.chung@samsung.com>]

Before adjusting this patch, always return 0.
Then clock-setup would be always succeed.
In dw-mmc.c, it's checked like below

ret = drv_data->setup_clock(host);
if (ret) {
	...
	Never entered at here..
}

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
 drivers/mmc/host/dw_mmc-exynos.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 72fd0f2..764ff29 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -99,7 +99,7 @@ static int dw_mci_exynos_setup_clock(struct dw_mci *host)
 	else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4210)
 		host->bus_hz /= EXYNOS4210_FIXED_CIU_CLK_DIV;
 
-	return 0;
+	return host->bus_hz ? 0 : -EINVAL;
 }
 
 static void dw_mci_exynos_prepare_command(struct dw_mci *host, u32 *cmdr)
-- 
1.7.9.5