Signed-off-by: Andrey Smirnov <[email protected]>
---
drivers/usb/host/ohci-at91.c | 24 ++++++++++++++++++++----
1 file changed, 20 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 57ca86a..f413616 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -34,10 +34,23 @@ struct ohci_at91_priv {
struct ohci_regs __iomem *regs;
};
-static void at91_start_clock(struct ohci_at91_priv *ohci_at91)
+static int at91_start_clock(struct ohci_at91_priv *ohci_at91)
{
- clk_enable(ohci_at91->iclk);
- clk_enable(ohci_at91->fclk);
+ int ret;
+
+ ret = clk_enable(ohci_at91->iclk);
+ if (ret < 0) {
+ dev_err(ohci_at91->dev, "Failed to enable 'iclk'\n");
+ return ret;
+ }
+
+ ret = clk_enable(ohci_at91->fclk);
+ if (ret < 0) {
+ dev_err(ohci_at91->dev, "Failed to enable 'fclk'\n");
+ return ret;
+ }
+
+ return 0;
}
static void at91_stop_clock(struct ohci_at91_priv *ohci_at91)
@@ -48,6 +61,7 @@ static void at91_stop_clock(struct ohci_at91_priv *ohci_at91)
static int at91_ohci_probe(struct device_d *dev)
{
+ int ret;
struct resource *io;
struct ohci_at91_priv *ohci_at91 = xzalloc(sizeof(*ohci_at91));
@@ -76,7 +90,9 @@ static int at91_ohci_probe(struct device_d *dev)
/*
* Start the USB clocks.
*/
- at91_start_clock(ohci_at91);
+ ret = at91_start_clock(ohci_at91);
+ if (ret < 0)
+ return ret;
/*
* The USB host controller must remain in reset.
--
2.9.3
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