[PATCH 3/4] usb: ohci-ep93xx: use devm_clk_get()

From: H Hartley Sweeten
Date: Fri Jun 28 2013 - 20:30:16 EST


Use devm_clk_get() to make the code a bit cleaner and simpler.

This also fixes a bug where a clk_put() is not done if usb_add_hcd()
fails.

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Cc: Lennert Buytenhek <kernel@xxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/ohci-ep93xx.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
index b4f5e64..28fa6b8 100644
--- a/drivers/usb/host/ohci-ep93xx.c
+++ b/drivers/usb/host/ohci-ep93xx.c
@@ -69,9 +69,8 @@ static int usb_hcd_ep93xx_probe(const struct hc_driver *driver,
goto err_put_hcd;
}

- usb_host_clock = clk_get(&pdev->dev, NULL);
+ usb_host_clock = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(usb_host_clock)) {
- dev_dbg(&pdev->dev, "clk_get failed\n");
retval = PTR_ERR(usb_host_clock);
goto err_put_hcd;
}
@@ -96,7 +95,6 @@ static void usb_hcd_ep93xx_remove(struct usb_hcd *hcd,
{
usb_remove_hcd(hcd);
ep93xx_stop_hc(&pdev->dev);
- clk_put(usb_host_clock);
usb_put_hcd(hcd);
}

--
1.8.1.4

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