diff mbox series

[v3,5/6] usb: chipidea: msm: get optional clock by devm_clk_get_optional()

Message ID f298553253f74808ef49d40e71c9cf0624a4403a.1555488276.git.chunfeng.yun@mediatek.com (mailing list archive)
State Mainlined
Commit fcafadf71a252009f1d0663b8fcf4bd57f4f2c66
Headers show
Series [v3,1/6] usb: xhci-mtk: get optional clock by devm_clk_get_optional() | expand

Commit Message

Chunfeng Yun (云春峰) April 17, 2019, 8:28 a.m. UTC 
When the driver tries to get optional clock, it ignores all errors except
-EPROBE_DEFER, but if only ignores -ENOENT, it will cover some real errors,
such as -ENOMEM, so use devm_clk_get_optional() to get optional clock.

Cc: Peter Chen <Peter.Chen@nxp.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: Peter Chen <Peter.Chen@nxp.com>
---
v3: modify changelog comment
v2: add Acked-by Peter Chen
---
 drivers/usb/chipidea/ci_hdrc_msm.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
index 880009987460..b8b3caad889c 100644
--- a/drivers/usb/chipidea/ci_hdrc_msm.c
+++ b/drivers/usb/chipidea/ci_hdrc_msm.c
@@ -205,12 +205,9 @@  static int ci_hdrc_msm_probe(struct platform_device *pdev)
 	if (IS_ERR(clk))
 		return PTR_ERR(clk);
 
-	ci->fs_clk = clk = devm_clk_get(&pdev->dev, "fs");
-	if (IS_ERR(clk)) {
-		if (PTR_ERR(clk) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-		ci->fs_clk = NULL;
-	}
+	ci->fs_clk = clk = devm_clk_get_optional(&pdev->dev, "fs");
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 	ci->base = devm_ioremap_resource(&pdev->dev, res);