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usb: gadget: mv_udc: Handle return value of clk_prepare_enable.

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clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Arvind Yadav 2017-06-14 15:20:08 +05:30 committed by Felipe Balbi
parent 46b780d46b
commit 0e1b89e54d
1 changed files with 6 additions and 3 deletions
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9
drivers/usb/gadget/udc/mv_udc_core.c
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@ -960,9 +960,9 @@ static const struct usb_ep_ops mv_ep_ops = {
.fifo_flush = mv_ep_fifo_flush, /* flush fifo */
};
static void udc_clock_enable(struct mv_udc *udc)
static int udc_clock_enable(struct mv_udc *udc)
{
clk_prepare_enable(udc->clk);
return clk_prepare_enable(udc->clk);
}
static void udc_clock_disable(struct mv_udc *udc)
@ -1070,7 +1070,10 @@ static int mv_udc_enable_internal(struct mv_udc *udc)
return 0;
dev_dbg(&udc->dev->dev, "enable udc\n");
udc_clock_enable(udc);
retval = udc_clock_enable(udc);
if (retval)
return retval;
if (udc->pdata->phy_init) {
retval = udc->pdata->phy_init(udc->phy_regs);
if (retval) {