[PATCH] atmel: fix a missing check of clk_prepare

[Kangjie Lu]

clk_prepare() could fail, so let's check its status, and if it fails,
issue an error message.

Signed-off-by: Kangjie Lu <kjlu@xxxxxxx>
---
 drivers/misc/atmel-ssc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c
index d8e3cc2dc747..9e69d0585f49 100644
--- a/drivers/misc/atmel-ssc.c
+++ b/drivers/misc/atmel-ssc.c
@@ -60,7 +60,8 @@ struct ssc_device *ssc_request(unsigned int ssc_num)
 	ssc->user++;
 	spin_unlock(&user_lock);
 
-	clk_prepare(ssc->clk);
+	if (clk_prepare(ssc->clk))
+		pr_err("ssc: failed to prepare clk.\n");
 
 	return ssc;
 }
-- 
2.17.2 (Apple Git-113)