diff mbox series

[4.19,114/338] mmc: davinci_mmc: Handle error for clk_enable

Message ID 20220414110842.152990433@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH April 14, 2022, 1:10 p.m. UTC 
From: Jiasheng Jiang <jiasheng@iscas.ac.cn>

[ Upstream commit 09e7af76db02c74f2a339b3cb2d95460fa2ddbe4 ]

As the potential failure of the clk_enable(),
it should be better to check it and return error
if fails.

Fixes: bbce5802afc5 ("davinci: mmc: updates to suspend/resume implementation")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220308071415.1093393-1-jiasheng@iscas.ac.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/davinci_mmc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index e6f14257a7d0..70d04962f53a 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -1389,8 +1389,12 @@  static int davinci_mmcsd_suspend(struct device *dev)
 static int davinci_mmcsd_resume(struct device *dev)
 {
 	struct mmc_davinci_host *host = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_enable(host->clk);
+	if (ret)
+		return ret;
 
-	clk_enable(host->clk);
 	mmc_davinci_reset_ctrl(host, 0);
 
 	return 0;