[PATCH 1/1] sound:soc: fix return value check in imx_audmux_suspend

[Yuanjun Gong]

check the return value of clk_prepare_enable, and if
clk_prepare_enable got an unexpected return value,
imx_audmux_suspend should return the error value.

Signed-off-by: Yuanjun Gong <ruc_gongyuanjun at 163.com>
---
 sound/soc/fsl/imx-audmux.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c
index be003a117b39..962b6baf0a34 100644
--- a/sound/soc/fsl/imx-audmux.c
+++ b/sound/soc/fsl/imx-audmux.c
@@ -325,8 +325,11 @@ static void imx_audmux_remove(struct platform_device *pdev)
 static int imx_audmux_suspend(struct device *dev)
 {
 	int i;
+	ssize_t ret;
 
-	clk_prepare_enable(audmux_clk);
+	ret = clk_prepare_enable(audmux_clk);
+	if (ret)
+		return ret;
 
 	for (i = 0; i < reg_max; i++)
 		regcache[i] = readl(audmux_base + i * 4);
-- 
2.17.1