diff options
| -rw-r--r-- | drivers/rtc/rtc-at91sam9.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c index 23f721d049b2..f9e85ace5e71 100644 --- a/drivers/rtc/rtc-at91sam9.c +++ b/drivers/rtc/rtc-at91sam9.c @@ -425,18 +425,19 @@ static int at91_rtc_probe(struct platform_device *pdev) if (IS_ERR(rtc->sclk)) return PTR_ERR(rtc->sclk); - sclk_rate = clk_get_rate(rtc->sclk); - if (!sclk_rate || sclk_rate > AT91_RTT_RTPRES) { - dev_err(&pdev->dev, "Invalid slow clock rate\n"); - return -EINVAL; - } - ret = clk_prepare_enable(rtc->sclk); if (ret) { dev_err(&pdev->dev, "Could not enable slow clock\n"); return ret; } + sclk_rate = clk_get_rate(rtc->sclk); + if (!sclk_rate || sclk_rate > AT91_RTT_RTPRES) { + dev_err(&pdev->dev, "Invalid slow clock rate\n"); + ret = -EINVAL; + goto err_clk; + } + mr = rtt_readl(rtc, MR); /* unless RTT is counting at 1 Hz, re-initialize it */ |