diff options
| author | Grygorii Strashko | 2016-12-06 18:00:37 -0600 |
|---|---|---|
| committer | David S. Miller | 2016-12-07 11:13:46 -0500 |
| commit | 6c691405bcaf8f1a7413416cc757756cfb060875 (patch) | |
| tree | bacefe23cba3ee053490ab1f97eda60a34f1e433 | |
| parent | fd123a9414766e73fa704547e7f03595741b7de1 (diff) | |
net: ethernet: ti: cpts: fix registration order
The ptp clock registered before spinlock, which is protecting it, and
before timecounter and cyclecounter initialization in cpts_register().
So, ensure that ptp clock is registered the last, after everything
else is done.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/ti/cpts.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c index 61198f154a04..3dda6d5ba0aa 100644 --- a/drivers/net/ethernet/ti/cpts.c +++ b/drivers/net/ethernet/ti/cpts.c @@ -356,15 +356,8 @@ int cpts_register(struct device *dev, struct cpts *cpts, u32 mult, u32 shift) { int err, i; - unsigned long flags; cpts->info = cpts_info; - cpts->clock = ptp_clock_register(&cpts->info, dev); - if (IS_ERR(cpts->clock)) { - err = PTR_ERR(cpts->clock); - cpts->clock = NULL; - return err; - } spin_lock_init(&cpts->lock); cpts->cc.read = cpts_systim_read; @@ -382,15 +375,26 @@ int cpts_register(struct device *dev, struct cpts *cpts, cpts_write32(cpts, CPTS_EN, control); cpts_write32(cpts, TS_PEND_EN, int_enable); - spin_lock_irqsave(&cpts->lock, flags); timecounter_init(&cpts->tc, &cpts->cc, ktime_to_ns(ktime_get_real())); - spin_unlock_irqrestore(&cpts->lock, flags); INIT_DELAYED_WORK(&cpts->overflow_work, cpts_overflow_check); - schedule_delayed_work(&cpts->overflow_work, CPTS_OVERFLOW_PERIOD); + cpts->clock = ptp_clock_register(&cpts->info, dev); + if (IS_ERR(cpts->clock)) { + err = PTR_ERR(cpts->clock); + cpts->clock = NULL; + goto err_ptp; + } cpts->phc_index = ptp_clock_index(cpts->clock); + + schedule_delayed_work(&cpts->overflow_work, CPTS_OVERFLOW_PERIOD); + return 0; + +err_ptp: + if (cpts->refclk) + cpts_clk_release(cpts); + return err; } EXPORT_SYMBOL_GPL(cpts_register); |