diff options
| -rw-r--r-- | drivers/usb/dwc3/dwc3-octeon.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/dwc3/dwc3-octeon.c b/drivers/usb/dwc3/dwc3-octeon.c index 6f47262a117a..73bdcebf465c 100644 --- a/drivers/usb/dwc3/dwc3-octeon.c +++ b/drivers/usb/dwc3/dwc3-octeon.c @@ -251,11 +251,11 @@ static int dwc3_octeon_get_divider(void) while (div < ARRAY_SIZE(clk_div)) { uint64_t rate = octeon_get_io_clock_rate() / clk_div[div]; if (rate <= 300000000 && rate >= 150000000) - break; + return div; div++; } - return div; + return -EINVAL; } static int dwc3_octeon_setup(struct dwc3_octeon *octeon, @@ -289,6 +289,10 @@ static int dwc3_octeon_setup(struct dwc3_octeon *octeon, /* Step 4b: Select controller clock frequency. */ div = dwc3_octeon_get_divider(); + if (div < 0) { + dev_err(dev, "clock divider invalid\n"); + return div; + } val = dwc3_octeon_readq(uctl_ctl_reg); val &= ~USBDRD_UCTL_CTL_H_CLKDIV_SEL; val |= FIELD_PREP(USBDRD_UCTL_CTL_H_CLKDIV_SEL, div); |